my problems with wow's combat system... OPINION
1) set in stone best rotations make up 90% of the raid fights, there are some very cool fights (such as lich king you mentioned) but almost every boss I was pretty much facerolling my rotation then moving 3 steps to the left when my mod said to. There is plenty they can do with what they have, but they often choose not to, or the repetition removes it.
2) useless abilities, millions of them. I roll a certain class, and depending on what spec i choose, despite having 20+ attacks, I only ever use 5 of them and the rest I could remove from the bar and forget about, many abilities are made to be used with a certain spec and nothing else so what looks like a lot, isn't.
3) mods remove most thought process from raids, why watch the bosses actions when you can glaze your eyes hitting your perfect rotation until the mod says "run!" then you run. I watched people die on raids 20 lv's lower than them then say "my mod didn't tell me to run" even though they had 1hp, its hilarious. mods make it so we know everything a boss does before they do it for the most part its all clockwork and it makes it even more repetitive, as well as making those repeat runs even more boring.
4) difficulty curve, gearing up consists of slapping around helpless enemies who have no chance for a couple weeks, then you go to a raid, slap around helpless bosses for a month or so, THEN you try the hard fight(s) after a few weeks, you've outgeared them and slap them around too with nothing bigger to pick on. This is largely a WotLK problem since they lawlified their difficulty curve.
As you can see most of my problems lie with WotLK, I very much enjoyed WoW before that despite some personal annoyances.
Is FFXIV's? current form perfect? **** no. Does it have flaws? **** yes. It is in beta, yes it also close to retail, but that doesn't mean Open Beta = Retail, that also does not mean Retail = New Game, I am expecting most of what we see in OB now to be in release. The thing is it WILL change AFTER release as well, if your going to expect a polished and perfected mmo at release your doing it wrong, they take time to mature (there is a reason some people only play mmos 6months after release, but without the initial pioneers that would be impossible) and as such many of us displaying so much confidence in this game is because see the potential it has and what SE can do to greatly improve it form the near to far future. If you don't believe this try compare release WoW to how it is now, you won't even recognize it (especially after cata release ;) ) Or comparing JP release ffxi to how it is now (holy ****).
Just because we like this game and defend it doesn't make us fanboys or **suckers, perhaps we simply have a much higher opinion of this game and see its real potential much like you in yours? If that's being a fanboy then so are you, just for a different game. Which makes this entire thread moot since everything fanboys say is a lie.
If you want to try discuss how "bad" a game is, going to their fansites usually isn't the best place to do so either.