For the longest time my favorite trem was the old Ibanez Lo Pro Edge from the 90s. It was on all my guitars back in the day and I loved it.
I know a lot of you guys really dig the OFR, but for me it's just not my thing. The bar always seems to come loose on mine and I just don't dig it as much.
The weirdest trem I have is on my S-series 7 string. It's got an Ibanez TRS trem, which by default should be a total piece of garbage (most others I've played were), but it's just amazingly smooth and the flutter is to die for, it's absolutely endless. You could hit the bar hard, it'll flutter, and it'll keep fluttering through the next few notes you play. What a great sound.
Recently though, I've really gotten into the Ibanez Edge III that's on two of my newer Ibanez guitars. This trem plays like the Lo Pro Edge, but the blocks are part of the structure, and the bar sits better. I originally though the whammy bar had worn the cavity a little bit, because it was fairly loose, then I noticed a very small allen wrench screw on the back of the trem used specifically for tightening the bar cylinder. The result? Pure awesome. Best trem ever. The bar is extremely tight, the bridge stays perfectly in tune, and the profile is super low so it doesn't get in the way of my playing. I love the Edge III.
I like the OFR on my Loomis but it is a bit of work to maintain and such.
The Wilkinson VS-100 on my Carvin stays in tune really well and is easier to maintain and looks better. In most ways I prefer it to a Floyd.