Desu's awesome Borderlands class analysis.

Here I will tell you my thoughts on the classes and their skills/profecencies. Keep in mind that I like to use the characters as they were intended (this means no Rocket Launcher Mordecai).

Hunter: Mordecai
Without a doubt my favorite class, Mordecai specializes in my two favorite weapons; Snipers and Pistols. His skills increase the power of both of these guns, as well as the accuracy of the Sniper (MUCH needed, as a lot of these snipers sway). In my opinion, he is not only the most fun character, he is also the BEST character. The damage from Sniper headshots (my highest damage was around 15000 at level 30, much to the surprise of a level 37 Soldier, the countless Repeater Pistols that have fire rates better than SMGS, and Revolvers with damage outputs through the roof should alone put him as the highest damaging class, but then you add BLOODWING, likely The single most damaging attack that isn't a critical in the game. Bloodwing can do damage ranging from 500 to 3000, depending on artifacts and level. This is probably why he starts off only being able to attack one enemy, but this can be fix with simple skill investment. Add on top of that that Bloodwing has the lowest initial cooldown of all skills, a skill that makes him have 100% Daze on equal lvl enemies, and he brings back 35% of the damage he did as HEALTH FOR YOU, you have one crazy ass skill. That's not to mention the skills that let you lower the 36 second cooldown to 20 seconds, and the skill that makes every hit with you sniper lower the cool down by 4 seconds.

In regards to weapon choice, my general setup is:
1) Long range Sniper of choice (preferably an S&S, as they have both a good fire rate and clip size)
2) Close range Sniper (Whittings Elephant Gun suits perfectly, as it has no scope. It works like a shotgun, but has consistent damage AND gives me my Sniper bonus)
3) My trusty Pistol (either a Repeater or Revolver. I have one of each for Ammo reasons, but usually only have one equipped. Repeaters works REALLY well when you're downed to get a quick second wind, and Revolvers destroy with criticals.)
4) Combat Rifle (Not his specialty weapon, but it suits him. It's like the love child of Repeaters and Snipers. Keep one for close fights and to prevent not having ammo.)

Suggested Grenade: Transfusion
You're a sniper. Don't mess around with grenades. Throw it, forget about it, and snipe.

Will add other classes later.