I have owned an iPhone 4 for a few days now, never dropped a call. I'm left-handed, the worst thing was that I lost one bar (big deal) and I'm not using a case. Reception on the iPhone 4 has been better than my Curve 8900 (3 bars vs 1 bar) but that depends on how they visually represent the signal.
so far all I've read about the iPhone 4G is that it's a bunch of troubles. I recommend you wait for another release or at least until they fix the antenna issue
I don't blame you for being influenced by the media, I had the same impression until I talked to people who actually own it and saw how it behaved in my own eyes. I then bought one myself and never had a problem. Also, have you seen the screen on that phone?!