About the differences between our builds it mainly comes down to personal preferences, apart from some of the *skills there is room for changes that better fit your gear or playstyle.
I made a not-so-lenghty text explaining my choices a while ago in a pm with @BookEmDano and after some changes it resulted in a fairly resilient elemental melee-weapon hybrid, unfortunately it was back at the old gbox forums and since I don’t have the text, here’s some of my reasoning behind these three skills:
Embrace the Pain — I preffer the extra fire-rate over explosive damage since not all of my weapons would benefit from strip the flesh, it works well with torgue’s usual low fire-rates.
Buzzaxe Bombardier — Since the build was focused mainly on getting close enough and just going melee instead of throwing fuel the rampage-enhanced axes I would avoid the possible damage to self from BxB’s splash.
Redeem the Soul — On single-player It’s an extra 50% base ffyl time added to your timer, on multi-player it means waiting for the last second, rushing towards a teammate and switching places with them but with a full ffyl timer instead, getting back up right next to RtB’s health range.
… well, you didn’t ask about this one but I guess it could help posting anyway.
Fuel the Blood — I’ve skipped this one both because I dislike focusing kills around buzzaxe-throws a but also due to the increase to self-damage from StV, it took me a while to figure out why I suddenly would lose about 90% of my health out of nowhere while surrounded by bandit chumps.
*Skills that the whole build is based around: Release the Beast, Silence the Voices, Burn, Baby, Burn, Numbed Nerves, Fire Fiend, Elemental Empathy and Raving Retribution.