opera is using proxy servers, it optimizes the page for your phone so it loads quicker. not all sites work on opera. I have found no browser , other than stock that is fast enough and stable enough for me.
. I myself have android(HTC EVO 4G rooted and running CyanogenMod7) Which is a totally different phone than came from factory.Phone companies give us a product, and we hack the **** out of it to make it something better than it was and expand its capabilities. That's the whole point of rooting/jailbreaking.
if you're gonna root/jailbreak and fiddle with the phone, get ANDROID..
oo with android you can switch roms, roms are like different distros of linux, or if you dont understand that...like we both have xboxes...but you only have one game, i have many....roms..
heres my phone with cyanogenmod7
YouTube - ‪Cynogenm0d7 on evo screencapture‬‏
and miui rom
YouTube - ‪miui 1.4.22 on evo‬‏
if you plan to use the phone like any other,...get the iphone....both great phones, 1 is more for tech savvy people , and the other, for simple people