I want to see Arlovski back in the UFC. He should be able to beat guys like Struve, Barry, Johnson, and Rothwell. Would make for some exciting matchups.
Not to mention he holds multiple wins over some current UFC fighters like Rothwell, Werdum, Nelson (only one to KO him) and Matyushenko. If you have HW's like Rob Broughton in the UFC, surely a guy like Arlovski would be a good signing.