Your blanket statement was to the effect that Gecko is always the slowest of the bunch, comparable to only Trident (what specific area of performance you never mention, implying performance of everything). Such are the ingredients of a troll.
Anyway, I've done a stupid thing and compared Opera 10.60 with the FF4 beta (not 3.6.6 as per above poster), just for you.
On my PC, Opera and FF4 are approximately neck-to-neck on the above benchmark, with FF4 having a small but consistent lead of about 10-15%. On zooming in to render in detail, FF's margin increases.
So how about another counterexample:
Opera 10.60: 827ms
Still standing by your claim that Opera is "faster" at everything?