I will share my wisdom with you all: it doesn't matter much what kind of team you make, because loot is random, skill checks of levels a lot higher than what you will most likely have at that point are very rare, and you get showered with XP. instead, focus on attributes, these are a lot harder to pump up (I believe there are 5 or so attribute shrines on the first map, so you could theoretically fix a skewed character as you progress).
what I do usually is have each ranger specialize in one type of weapon: Assault Rifles, SMGs, Sniper Rifles, Shotguns - in that order, because in my experience ammo for the ones on the left is easier to find. so I always have two AR characters (Angela being the other one) - they always have enough ammo. one SMG character is a must, because SMG is easily the most powerful weapon in the early game, and there's a ton of 9 mm ammo in the wasteland. two bursts every round - yes, please.
I do tend to have one melee guy in the beginning, but as the game progresses I turn him into Energy Weapons guy/gal. snipers are kind of ****ty in the early stages of the game because they lack good weapons. this will change as soon as you get access inside Ranger Citadel. also, in my experience a sniper build is the most difficult to get right, my snipers always end up gimped (it is possible to get your sniper to shoot twice in one round and have high initiative, but figuring out the proper attribute values for that makes my head hurt, and that could've been changed since Beta)
but of course the amount of XP and the number of skill shrines is why you shouldn't worry too much about your skill point distribution. in the Beta I finished with Act 1 in mid-twenties. so you'll have plenty of skill points (don't forget to pump that Intelligence early).
just don't spent it as soon as you get it! I constantly have at least 2 (preferably 4) skill points hanging on each character just in case I come across a challenge that I just can't pass by but don't have a high enough skill to complete.