out of all of those, i have an older soma rush. it's a great steel frame. it sometimes feels a little a faster than some of my aluminum frames, but i attribute that to the absorbing power of steel in general. i keep it at my parent's place in florida, so i don't get to ride it too much. however, i do fantasize about them shipping it up to me here in NY. it is a really nice ride, to say the least...