I'm tempted to advise the only one I havent tried, actually - the gotoh.
Reason being, Bob @ legra, who built my awesome number one guitar, was a mechanical engineer for ~20 years before lutier, and he says they're the best engineered.
It was in a thread in here a while ago (I've never wanted bob to put a trem in the guitar I have, or one I nearly got built, so it wasnt in private exchange). Alas, I dont remember it.
- Wrong thread. Its early. I'll copy it in the right thread.