I would think any BD ready software would work pretty well. In these kinds of things, beauty is in the eye of the beholder. If you are happy, then I would stop there.

Beyond that, you don't mention your OS. I assume it's Vista. The WMP bundled with Vista cannot natively play BD discs. (Of course, XP never did as it's old.) You may be able to if you use WMP 11 with the proper codecs (like http://shark007.net/vistacodecpackage.html But I have never tested this!)

I am pretty certain VLC will play BD discs but am not sure of the quality. http://www.videolan.org/vlc/

Of course, commercial programs like new versions of Cyberlink's PowerDVD will work but they cost...