I would like to know what is different between all the different roms out there... Things I noticed (and don't care about). 1) Different system packages installed... Fresh is nice since it also puts the rest of the system .apks in your sd card. 2) Different kernel out-of-the-box. However this is moot, as if your kernel runs on the appropriate rom, you pick and chose that. 3) Some pre-installed other .apks... like wifi tethering, fresh update, etc. (somewhat useful things) 4) Themes for Sense? Like fresh looks different than stock, and so do others. Anything else? Is there something under-the-hood that we should be aware of. I know some people swear by ROMx or ROMy but why?