I think android is getting better, ie lollypop.. more native support.
I'm still on my N900 but have a tablet with android.. not sure when or if I'd switch to it.

Re, SD, TV out... I'm thankfull it's even there.. and paid extra for it

Desktop sync'ing.. pay for an app, that's not really a core feature of a phone IMO.

Battery life is managable, being able to replace a battery myself is not optional for me, I need to know I can do it!

Camera, IMO, having a good camera/flash is a bonus but I don't pick a phone just for it's camera.

Stylus, hmmm.. with the size/res of new phones, I don't think a stylus is reallly needed... not like N900 where you do.

I'm still using my N900 mostly because:
Linux OS
Physical keyboard
little extras: 32g, SD, GPS, FM, camera etc