It did kind of piss me off that the Szayel fight went on as long as it did, with Renji being joined by Ishida being joined by 'revealed as competent' Dondonchakka and Pesche...
and still failing, and needing Mayuri to bail them out?
And he's only #8, whereas 9 and 6 were soloed by Rukia and Ichigo, respectively. Sure, he uses hax, but shouldn't those have been taken into account a little more if they make such a huge difference in how hard he is to defeat?
But I also got the impression that Kubo started that fight without a clear idea of where it was going. Like with Szayel making all of the clones of everyone, but then destroying them before anything was really done with them and revealing a completely new power for his released form.