It's all about your location. 4G speeds are consistently worse than 3G speeds where I live. It's an unfortunate fact.
I have run into the same thing... I don't live in a 4G area but I am visiting with my family in Raleigh, NC which shows pretty much blanketed with 4G coverage... Well in MOST spots I have actually had better 3G speeds than 4G speeds.. Even while the meter was showing full signal on 4G and 2 bars when I switched over to 3G.
There have been a few spots where 4G was faster but it didn't blow me out of the water.. Downtown Cary, NC, 3G was giving me 1.2 mbps down and 4G was giving me 2.5 mbps down. Yeah that is twice as fast but not really worth the battery drain you get with 4G.... When I was downtown Raleigh I actually got 1.5 mbps down on 3G and only .50 mbps down on 4G and the 4G signal was showing 3 bars....
Inside my parents house I get no 4G signal but on the porch or back deck I get 2 - 3 bars of 4G..... the 3G signal is full strength both inside and out.
All in all pretty much all the phones coming out right now vs the phones in the immediate future are neck and neck in quality/options/service... How can you REALLY put one over the other?