I will never be able to answer that question EVER!!! Well there both kinda the same only Sokka is negative and Bolin is positive. Other than that there is no difference at all.
Definatly Sokka!! Bolin is funny but he is gonna need to pick up his game alot if he wants to compete with sokka.
Sokka: I got it, Sparky Sparky Boom Man!!
Sokka: Giant mushroom! Maybe its friendly!!
Sokka: I got it *throws boomerang while stuck in crack* now come back boomerang.
Katara: *throws acorn at Aang.* Aang: Ow how was that supposed to cheer me up!? Sokka: Heheh cheered me up!
That is by far the easiest question in avatar history, whoever asked this question is either not a true avatar fan or has no sense of humor. it is definitely sokka
Sokka: Who lit Toph on fire?
Sokka: Drink Cactus juice! It'll quench ya! Nothings quenchier! Its the quenchest!
Sokka: haha, rock beats Airbender.
Sokka: Watertribe *Does cool thing with hands and head*
Sokka: Oh, I gotta remember that one! To :Its on the island on nunya. Nunya business!
Of COURSE SOKKA!!!! He was funny in a way Bolin can NEVER reach. Sokka would make you laugh, ALWAYS.... Bolin would give you a giggle two times an episode...