The cap for ☆5 Levinshower, or any rank 30 leve for that matter, is rank 44. After this, you experience a pretty dramatic cut in SP, especially without aspect (and you really shouldn't aspecting anything but Dunes/Ranine to begin with, you'll run out way too quick if you do your leves every reset).
Raptors, once you're in a decent enough rank range (42~47), give on average 315~330SP per kill. In that same 42~47 range, they take a little less than 30 seconds each to kill without TP from a prior fight. Note that this is in an optimal setup (5 DoW/1DoM). They take around 10-15 seconds to kill if your DoWs start the fight with 1000TP or more, which should be around 4/5 fights. If your party is below the "good" rank range (38~43), you can almost make up for it by doing decent BRs that take down the Raptors as soon as they get Executed. 1 DoM spell (Tier II Nuke or Banish II) and any 3-5 WSs will do this instantly.
Given those numbers, it should take around 75 raptor kills in an hour to get the 25k noted. At the maximum 30 seconds per fight, it would take around 40 minutes if there were no need to run from spawn to spawn. You do, in fact, probably spend around 20 minutes in that hour moving to and from the different Raptor groups in Boulder Downs.
Sure, this is if no other parties are there... but even on my server which is pretty heavy populated, there usually aren't any around. Just the one that you would start if you wanted to do Raptors.
This is why, after 44 you shouldn't be touching the 30 leves when you can just go kill Raptors. Leves like Levinshower will be giving you around 5k without aspect (and you can't afford to use aspect on it), so your time really is just better spent, while getting more SP, on Raptors. It also frees up some Leve spaces if you do gathering or want marks for a certain class.
Now for a rundown on averages of SP for 30 (when you're not above rank 44) and 40 leves:
Keep in mind that, like I said, if you aspect the 30 leves, you are certain to run out of aspect to use on Dunesfolk and Ranine quickly...
Adamantine Wills (~15min average) - Ranges from 5k~10k without aspect, but similar figures with aspect. The large range is from your luck with Pages dropping and huge gap between spawns.
Potter's Price <hope that's the NA name> (~7min average) - About 6k without aspect. Same as ☆5 Devilet Inside, although Devilet Inside caps off at a much lower rank since its a R20 leve. You can't do it past around rank 39 I believe (without getting massive SP cuts, of course).
Levinshower (6~9min average) - The kills give around 350 SP without Aspect and a little over 500 with, making the leve's net SP total around 7k without Aspect, and 10~11k with.
Lightsome Verdure (~10min average, sometimes ~20min) - These give the same SP numbers as Levinshower, really. SP is based on luck with pages. Long run times lead to long completions. You can get around 7k without aspect.
Inferno (~6min average) - Maybe it's just me, but I never have terribly good luck with pages, and this one ends pretty quickly for most people I hear. Without aspect (you shouldn't be aspecting this under any circumstances) you should get around 5k~7k
Moon's Mistress (6~9min average) - This is basically the same thing as Levinshower, but in Mun Tuy. Expect around 7k without aspect.
Dunesfolk for Dinner (~7min average) - This is a fairly static leve when it comes to time for completion, as long as you aren't killing too slow to get drained a lot. This one, with aspect gives a pretty constant 15k~ SP depending on your luck with Bombs and blank pillars. Alwayyyyss aspect this. Without aspect, it still gives around 10k~. Mongrels have an SP cap of about 905 with aspect.
Ranine Reveries (6~12min average) - Again, depends on your luck with pages. But most people find on average, that with aspect, the SP is very simlar to Dunesfolk, if not a little less when you get screwed on pages.
All Cracked Up (~7min average) - This leve really shouldn't be aspected, but I see people doing it a lot just because it's a 40 leve. If the groups of Cockatrice spawned in 3s like Ranine, it would certainly be worthy, but they don't. You shouldn't expect more than 5k~6k without aspect, the numbers don't get so much better with aspect.
Great Hoary Toads is a copy pasta of Dunesfolk, so see Dunesfolk lol
On top of all of that, I don't need to make a static to know the SP you would get from being in one. I've done seperate groups in every reset for the past few months... one for 40s, one for 30s. I know the SP you get, and 120k is a tad inflated when you're not aspecting every single leve, and accounting for the pretty heavy fatigue you'll be in at at least some points during your leveling if you do these every reset. Take any 6 leves I listed above + Dunes and Ranine and you get a little less than 120k. This is when you're not experiencing any fatigue. 8 leves times an average of 7 min. to complete each x 2 is about 2 hours of just the leves themselves (but usually it takes a little longer). Then you have to factor the time getting to each camp, about 4~5 camps in our case. It takes about 3 hours to do all of this with a static, and in just an hour more on Raptors, you can get really close to that with 100k SP.
To add to all of this, since leves make up for number of enemies with amount of SP given PER enemy, fatigue hits leves substantially harder than raptors, which is why the disparty for Raptors in fatigue is only cut short by a few thousand SP, whereas on leves you can lose about 100SP per mob in Stage 1, and up to 200~275 in stages 2 and 3.
In tier 1 of fatigue, raptors go from 330 to 300.
This is how you're supposed to argue, not by calling names and making yourself look like a child.