I always recommend Vape Lite for any server that screenshares (most practice servers) as you really can't be too careful. For maximum amount of features, Vape V3 is always the best. So it really depends on your needs and what you want out of Vape in order to pick the correct client.
I don't even own Vape Lite, but if you are on servers that screenshare thats 100% the way to go. If you are on Hypixel or some other server that doesn't screenshare use v3 and if you are on servers that don't screenshare but v3 lags you like it does me you could still use v2.