depends what you want from a phone.
features, ease of use, "cool-factor", games, good music player, thiness, clamshell, slide, candybar, touchscreen,
its always a compromise like most things in life. you cant have them all.
i wanted a touchscreen, smartphone with a shitload of features, so got a p1i. id have liked an easier to use music player, with buttons on the side for next track or sumthing but s**t happens.