Well, I picked up the Lego RB and imported them. Obviously its a matter of taste but I got at least 10 songs I enjoy (and I only paid 50 cents for the game off of Amazon). The import process worked cleanly for me once I figured out I had to submit the game code to the website for a working export code (ymmv).
With how cheaply you can get the game now, it's a pretty good steal for a batch of overall fun songs. "Summer of '69", "The Final Countdown", "Ghostbusters"....
Not to mention it was (I think) the first time we got a Hendrix song.
Tiger Uppercut: Platinum Artist | Expert: G/B | Hard: D/V
Song Count: 831 | Newest: "Great Balls of Fire" & "Dog Days Are Over"