As one of those rare folks who can comfortably use a 5.5" phone with one hand with no issue, please just ****.
Yes, I am 6'8" and larger than the average bear, and I have been waiting for a larger screen iPhone for a while. I had a 4S but the screen was just too damned small, so I jumped ship to a Note 2 and I love it, but I always said if I could get an iOS device with the same screen size I'd do it in a heartbeat, so I am now waiting for my 64GB 6+.
Not everyone looks ridiculous using a large phone, it's just a matter of scale.