LG G2, MOTO X (is an awesome phone), MOTO MAXX, or wait for goggle to announce what there nexus 5 is gonna be.
I have the galaxy s4 and love it, but i perfer the software interface of my dads samsung nexus which is just the google interface which the MOTO X (that has 2gb of ram!!!) and LG G2 use
I reccomend you get the newest and coolest thing because im already wishing I had waited for the MOTO X
Or you could just get an iphone if you dont want android, but dont get windows