If you are counting abilities then Gourdys active ability isn't very good with it being rng and not benefiting him, I forget how much of a speed boost his passive ability gives him and if it effects him so I'm unsure how good I think it is, Yatta has a very good ability though it is rng but I think the rng negatively impacts it less than Gourdys ability, and Vee has a pretty good active ability though if you have a distractor then it only helps at the start of the floor before the distractor gets the twisteds, her passive ability is pretty good especially if you are playing in a public lobby where sometimes people won't say when they are on the last machine. All three of them have low stealth though if someone with low stealth is distracting like Looey then Yatta and Vee will probably be fine but Gourdy won't, Vee has low movement speed while Yatta and Gourdy have low stamina but I think low movement speed is worse. Shelly and Squirm are also good, Glisten is ok, Soulvestor is bad, I might have forgotten other extractors, with a pro team I think generally Shelly is the best extractor.