Maliwan/any non-Maliwan that deals heavy elemental damage like the Orion in Borderlands.
I'm not a fan of revolvers, but I use a Defiler because its SUPER EFFECTIVE
I don't think I'll use Tediore much due to my preference on when I like to reload. I would waste way too much ammo.
I'm not a fan of burst fire, so probably won't use Dahl much.
Torgue sounds good, but I don't like the new paint jobs on them. All racing strips and checkered patterns.
Jacobs new fire rate system sounds good, but most weapon types tend to fire FASTER than I can pull the trigger. Will make for some really fun shotguns though. That will mitigate the usually crap accuracy of Jacobs and usually slow RoF of shotties. Well I prefer the shotties that can fire 5 times in under 1 second, but its good to know if I find one with a bad RoF it won't really matter if its a Jacobs.
Vladof will eat through too much ammo for me to want to use them much. That's one reason I prefer elemental weapons. One shot can do a TON of damage over 10 seconds or so, it tends to stack, and it can effect multiple enemies if they get caught in the area it procs. As opposed to a minigun that leaves you out of ammo after 2 or 3 badasses.
Hyperion sounds great, but in practice if you are going full auto you are probably not concerned with accuracy at that exact point. If you are wanting to use a shotty or smg to spray a group its gonna get less and less effective as you go, but single targets will get messed up.
Bandit, assuming you can get over the bad spelling, will likely turn out quite good. Large magazines and probably some pretty interesting designs.
But like the last game it will end up being which ever manufacturer had the legendary you want to use. Oh and I'm gonna be rockin rail guns all day every day when I get one
