The last phone I had was an Htc Diamond 2, it was ok apart from the slow windows mobile 6.1 software and slow internet. Htc hadn't got it quite right back then...
One day it just stopped working, I lost the ability to use the touch screen so was obviously screwed as nothing worked- Htc repaired it without my consent and wanted to charge me £150
I said no thank you then went back to my Samsung G600 as an emergency phone for a couple of months, nice little camera, my son still uses it.
I seemed to have completely bypassed the Iphone completely, we have them at work and I've sent so many back for repair, it put me off getting one. So when I saw the desire, then the hd version I knew! I did a lot of research into what I wanted from a phone and hd came out on top.
I had to wait until it was upgrade time to get my HTC Desire HD. Been really happy with it, just the flickering camera problem, which was resolved by advice on here.