Even as a Cavs fan, I'm not sure how this is a debate. As a whole during the regular season, the East had better records, mainly because the West had so many awful teams. For every horrible team in the West (Clips, Kings, OKC, Memphis, Minnesota) the East had a few below average but still competitive teams (Pacers, Nets, Charlotte, Milwaukee). The non-playoff teams in the East were far better than the non-playoff teams in the West.
The PLAYOFF teams in the West are much better than the playoff teams in the East. Aside from the Jazz, Hornets, San Antonio and Dallas every team in the West could give the Cavs a run for their money and could probably beat any other team in the Eastern Conference playoffs right now.
The Bulls and Sixers are peaking right now, but is there anyone that thinks we'd have more trouble with them than say...Houston or Portland?
The Lakers will have a tougher go of it in the playoffs and have a much better chance of getting knocked out than the Cavs. In the end, there's probably only one or two teams in each conference that could beat the favorites (Cavs, Lakers) and those are Houston and Denver in the West and Orlando, and (MAYBE) Boston in the East.
With all that said, I still think the Cavs beat the Lakers with homecourt in the NBA finals this year. If they DON'T play the Lakers, I'm willing to guarantee a championship.