I always used Firefox on my Mac Pro but I've not even installed it on the iMac, I almost exclusively use Chrome now. Occasionally I'll use Safari if something doesn't look right in Chrome but it doesn't happen very often.
Was an Opera user, then went to Firefox, now a full time Chrome user...
Safari for gestures. Think the % is a bit skewed on the poll!
Come on the Chrome fanboys, lets own this poll!