Standard build:
Hellrunner, Intuition, Ironman, Juggler
... I always try to take some Hellrunner, and Ironman.
... The Intuition path is still too useful to ignore, although CatEye is a good alternative now.
... Juggler, for same reasons as TFoN.
(RL and instant swap to CG/PR, or instant swap back to RL)
(or instant swap to DSG/CS for close encounters, and swap back)
(or instant swap to from one emptied PR to another in really dangerous close encounters)
AoB:
Berserker, Hellrunner, Ironman, Tough as Nails
... this is pretty much standard for any melee character
AoMr:
Hellrunner, Intuition, Son of a Gun, Whizkid
... sniping with pistols
AoLt:
Berserker, Hellrunner, Intuition, Ironman
... weaker melee fighter with foresight n CG/RL to balance weakness
My opinions on my least used traits:
TaN: I can't say much against this, as I've never used it apart from in N! run, where it was essential, but as its use is probably very dependent on how much damage you take, I prefer Ironman. I can see situations where TaN is better though.
Rel: Very useful in 0.985. Still useful in 0.987, but if you have an advanced weapon, you can do better with WK.
Cat: Int[3] was more useful in 0.985, at least on UV where you had lots of traits. Have to play more 0.987 games before I can judge this one.
Shottyman: Shotguns are a bit more useful in 0.987 with the new AI, but still the weakest type of weapons IMO. Shottyman trait as a function rocks though.
Badass: 2-3 levels of this trait seems too much to me. 1 level might make it too good. This trait would be more useful with just one level, and a very slow or non-existant health degen, or very slow health degen down to 150% and then stop at 150%. Although I've never taken it, I'm basing this purely on the fact that you need 3 levels of Badass to get the health degen to stop, so maybe its just for me that its not a good trait, as I spend a lot of turns exploring levels after I clear them. Might be more useful to other players. IMO probably the weakest trait in the game (esp. as TaN is now the requirement instead of Ironman, so less boosted health), next to SoaB, which is weak solely because it doesn't seem to work, or work as expected.
Triggerhappy: I'm not fussed about the potential ammo wastage, as I can always carry a backup shotty for the formers. This is an awesome powered trait! (the fact that is has more than one level makes it powerful as each level is a big boost on firepower) but I don't know if I will ever take it, because SoaB seems broken or almost worthless.