which borderlands dlc are recommended that arent in the goty

the headhunter DLCs and ultimate vault hunter 2 are the only playable DLC not in GotY.
get them if you want more play time/ levels and difficulty.

+1 for UVHUP 2! You can get the Headhunters too, but they don't offer more than 1 hour per DLC. I heard that HH 5: The Son of Crawmerax is 3 hours long. Well yesterday I bought it with my friend, and played through in less than an hour. Yes we got through Sparky FLint too. The only good thing about the DLC, that after you defeat Son of Crawmerax, you can go back, and it turns into a Raid Boss. Well the Headhunters are good for one other thing: Every boss you kill, drops a unique head ( you know HEADhunter ), which you can wear.