If i really needed the unlimited data, i'd go with the S3 for now, with option to sell down the line for razr HD.
one other thing, with the bigger screen is the S3 physically bigger? I'm not sure i want to go much larger than my current droidX...without double checking, I think the RazrHD will be a little smaller overall than the S3....
uhhh. one major thing about the galaxy....bigger screen...smaller battery = 1 day usage max...
droid HD will have min 2 days usage between charges. if you forget to plug in one day with razr HD, no problemo....
S3 will be DOA after 1 day with no plugin...
That is a very generous estimate on the HD but not entirely accurate. With normal network use I can get a max of two days on a single charge with my Maxx. And that is pushing it and using airplane mode during the day when not in use. Heavy all day users may get a full day and half of the next day. Now wifi is a different story. I have been out of work on short term disability so mine has been on wifi the majority of the time. I have gone almost 4 days on a single charge when using nothing but wifi. That was with like 8 hours of screen on time.