Out of curiosity, if nothing else, would a LLM from Univerity College of London (a top 5 U.K program) or Cardozo (a top 50ish American program) be better in practice? In academia?

UCL.

Well, this is my opinion! ;-)

Well then....thanks for the opinion. Anyone disagree?

UCL for sure

Cardozo...errr, where is that?

Mate, go to UCL.

Cardozo is in New York and is known for IP law, but not so much for its general LLM. Here is more info:
http://www.llm-guide.com/board/9015
http://www.llm-guide.com/board/1118

UCL is a top school and is strong in many subjects. Try the board search for more info.

New York or London? Difficult choice...

Here is another thread about Cardozo: http://www.llm-guide.com/board/3259

In terms of international reputation I would clearly go for UCL. It may be different if you want to work in New York after the LLM (very difficult to get a job though) or sepcialize in IP.

Definitely University College London.

be sure UCL is better.

In my humble opinion, I believe the better question is where you want to live/work during and after your studies.

While Cardozo might not be well known internationally, it is known in the U.S and certainly N.Y. employers. I attend a law school in California, so I'm not biased. I believe Cardoza to have a good reputation among U.S. attorneys. At the risk of sounding ignorant, I have never heard of the College of London LLM programs. My point is, if New York is where you want to be, go to Cardozo.

Don't buy into the hype. It is more about what you want to do with your LLM and where you see yourself after that counts(more so then rankings). Again, this is just my opinion and I mean no offense to UCL or it's students.

Thanks for the replies. What if we throw George Washington University into the mix? It's obviously above Cardozo in the U.S. rankings, but would a degree from UCL be more beneficial in academia? In practice?

Most UCL courses are taught both from the Academic and Practice perspectives. For eg. International Finance is taught by Prof. Graham Penn (Partner @ Sidley Austin) and Dr. Rawlings (Reader at UCL); Secured Transactions is taught by Michael Bridge (Prof at UCL) and Richard Calnan (Partner at Norton Rose); International Environmental Law is taught by Philippe Sands Q.C. (Partner @ Matrix Chambers) and Tim Swanson & Catherine Redgwell (Profs @ UCL). There are lots of other examples like these so UCL covers both the Academic and Practice sides of things.
But like a lot of folks have said, a decision on whether to go to school in the US or in London will ultimately depend on your plan afterwards.

Thanks mate, that's a good point. But a lot of us still aren't quite sure what to do after Uni.;trying to keep as many options open as available for later on...