They appear to look down on the YECs. I've had several JWs who I've talked to about evolution recently, when I refer to JWs as "Creationists", declare "We aren't Creationists, Creationists are dumb and believe that the earth was actually created 6,000 years ago LOL @ Creationists" - at which point I have to explain that is a straw man invented by the WTS, and not ALL Creationists are YECs, just as not all people who accept evolution subscribe to punctuated equilibrium. Then their eyes kind of glaze over and they're like "Yeah but the WTS says we're not creationists".
It's tough to have a conversation with people when you're not even speaking the same language.