As I mentioned on the first page, DE Robert Quinn of the Rams does the "Bernie" quite often (he also exaggerates the movements quite a bit though, lol), usually from to time after sacks and big tackles for losses, but I have yet to actually see it in-game from him, unfortunately. I don't think I've seen it yet, actually. As well as the basketball shot celebration.
I agree as well with many here though, players like Peyton Manning shouldn't be doing these types of celebrations in-game, as well as some other players that don't normally perform these specific types of celebrations.
As much as I would like more dynamic celebrations, this is just nit-picking at its best though. There are other improvements for future iterations of Madden that can be made before this, one being overall presentation, as well as ever-improving the AI. It's not like the celebrations are that big of a deal, but the general Madden forum seems to complain about most every little thing in-game (a lot of nit-picking going on in general). I just the want sim stats fixed for offline CFM, please.. and maybe another adjustment to the amount of sacks taken by the CPU QB (crossing fingers), for this year, and I'm great.
I'll just resort to sticking to the slider forum, where there seems to be more civil and well thought out discussions taking place. Plus we do, do our best working on sliders settings, to make the game play better overall for everyone, in there.
As for the slider settings, the best are mostly, or already complete by now. Take a look in there, if you haven't already.