1: It seems that because of the point spending system on stats now that if you were to play a conjurer for a while and spend stats that favor that class you would not be able to switch on the fly to a class like pugilist or lancer which uses str and dex rather than int and piety.
Is there a work around for that? should I spend points so that I am balanced and let my gear focus me or do casters stick to casting classes and melee to melee.
You can restat a quarter of your points every half an hour. I've been playing with rather balanced stats and at low levels it doesn't seem to hurt me much.
2: I am having trouble picking my guardian and I am wondering what all it effects so I can make a good choice.
I would pay the most attention to their elemental affinity - an maybe
which weapon/symbol they use/have. So wanting to be a conjurer might choose Thaliak. Wanting to be a lancer - might want Halone. Etc. The effect of guardians will probably be small and is largely unknown/unconfirmed at this point.
3: How stat reliant are the other profs like fisherman and cook and such.
Apparently they are stat reliant just like other jobs. No word on which stats though.
4: How difficult is it to travel from Limsa to Uldah and how important is your starting kingdom.
Starting Kingdom will determine your storyline quest. It is easy to get from Limsa to Ul'dah - the ferry takes 10 minutes though and there is a bit of a walk on the ul'dah side