Let's see. Firstly, television is 99% 1080i with a few channels such as Fox and ESPN broadcasting in 720p, and all of these signals are compressed. Blu-ray is drastically better. Secondly, simply avoid crap generic players if you're worried about problems such as freezing. Do your homework and buy a reliable machine. Thirdly, DVD DTS and DD are vastly inferior to lossless Blu-ray audio. Even if your equipment is incapable of outputting lossless, you will still hear the advanced DTS/DD HD cores which many people cannot distinguish from the actual lossless stream.
Blu-ray is so laughably better than DVD. Make the jump.