The Venom, speedpassion, and hobbywing are the exact same esc with different stickers and paint. The sphere, GTB, team wave, and tekin are all totally different inside, but still perform the same functions. For Mod 2wd, feel is very important since you have to be smooth to lay the power down and for such a task the sphere and Tekin seem to be the ones to beat for smoothness. I run all Tekin rspro esc's in my cars (T4, B4, B44) and absolutely love them. They are small and smoooooth.

I have owned a gtb, sphere, sphere comp 07, mamba max, mamba monster, RS, and RSpro and used many others and after testing a TON I sold all my brushless esc's and went with the Tekin RSpro.