I had similar issues to you with my 4g, but since ICS leaks and now the official build, its been perfect, havent had a single second of a drop. I personally love this phone, I miss my Dinc a little sometimes, but I still use it as my mp3 player when working since I dont want to get the rezound full of dust and dirt. Im excited for a new HTC phone on verizon, hopefully a beefed up one x or the rumored incredible x.
Good luck to OP though, I personally could never go away from android with all the customization etc... iOS is wayyy too locked down and bland for me.