We've been user "Browser", I hope one advantage of using Chrome would be bookmark sync with my desktop browser. "Browser" doesn't even have folders for it's bookmarks.

Anyway, my phone only runs Android 2.3 so it seems I'll have to wait till my next upgrade to avoid using hacked up apps to sync my bookmarks.

"Browser" on Android 4 syncs with Chrome already (and has folder support).

IIRC, Browser's sync is just bookmarks. Chrome for Android also syncs open tabs and autocomplete suggestions from the desktop, bringing closer to Firefox Sync.

No. We have been using a webkit mobile browser. This appears to be a separate code base.

well i've been using dolphin hd

Dolphin HD is just a reskinned version of the stock WebKit view that comes on every Android device/OS.