Me and my boyfriend both moved to uni together, but we are going to the same uni, doing the same course.
We are both currently living in spearate halls, (although very close to eachother). We never really considered living together in the first year in either couples student accomodation or private student accomodation. We would have only been together for a year anyway and figured it would be far too soon and that we wanted the 'halls' experience and proper opportunity to make new friends. Also to see if we stood the test of time and change of circumstances that could have put a big strain on our relationship.
I'm not really a big fan of the whole living in halls experience i must say! I didn't really get put with like minded people, and i am realllly tidy so hate having to live in everyone elses mess. Me and my boyfriend are still V. strong and are moving in together in July for the second year (something which we have been waiting for for the whole of the first year tbh).
Not to say that halls wouldn't be for you or that you should move straight in with your boyfriend but him moving up with you is a big step. Has he got anything else to be moving for apart from yourself? Maybe (as hard as it may sound) you should consider doing the long distance for a year and you can easily move in together in the second year.
In the end though, it all depends upon you as a couple, (and you as an individual). I'd say, dont knock halls unitl you've tried them, because they may well be the best year of your life, or you might just think meh. You can't tell until you have done it. Also depends on how long you have been together, finances (in relation to you living together) and whether you think you will be tempted to isolate yourself.
Good luck with your decision!