Mas wide yung 2.35:1, mas marami kang nakikita, big budget movies lang usually gumagamit nito. Wall-E, The Dark Knight, Iron Man, etc.
1.85:1 fills up almost the entire screen of a 16:9 LCD/Plasma.
1.78:1 is used by most TV series. Prison Break, 24, Desperate Housewives, Chuck, Firefly, etc.
All widescreen LCDs/Plasmas currently available are 16:9, so pag higher than 1.78:1 (no black bars) or 1.85:1 (minimal black bars), meron pa ring black bars at the top and bottom.
Btw 16:9 = 1.77777777777778