OKC has always had a great crowd but I've noticed the crowd hasn't had the same buzz the last two years as opposed to the years when the team was going to the conference finals. Part of that is that the newness has worn off with the team and the other part is that fans have become a little complacent wanting more than just a bunch of regular season and 1st and 2nd round playoff wins.
There has been a buzz about this game ever since OKC won game 2. The fanbase seems re-energized. Also, Friday night crowds are always lot more crazy than Sunday night crowds.
Tonight's game for OKC will be what Sunday's game is for the Spurs imo.
In other words, I like OKC's chances tonight. GL
PS. I know everyone will say I'm a homer but I also have a track record of picking against OKC so I'm probably not as biased as you would think.