after some more playing, im getting a little more confused lol
alright, i have quite a few questions, answers to any would be greatly appreciated!
1. Other than powers and a boost in certain skill levels, what other advantages does one race have over another?
It's mostly just aesthetics. Which race do you think looks best/which do you relate to more? Other than some once a day powers, the only real difference is some races get elemental resistances/magic resistances, Altmer get an initial 50 magicka boost, Argonian get waterbreathing and Khajiit get nighteye.
3. 2 handed magic, worth it?
Depends on the school.
Dual casting doubles the strength of Illusion spells like fear, calm and frenzy, so if you want to use those spells then dual casting illusion is a must.
For Destruction, dual casting is worth it if you also take the Impact perk, but some consider stunlocking your opponents "cheap." If you do not take Impact, than there is not much point to dual casting Destruction.
For Conjuration and Alteration, dual casting doubles the duration of your spells. May be worth it to some.
I would not take the dual casting perk for Restoration. It is just a magicka drain for healing spells -- better off single casting those with both hands than dual casting them. Unless you plan to use a lot of the turn undead spells in Restoration, dual casting won't do a thing.