For my money, the best version of Mighty Mouse was the 1980s Mighty Mouse: The New Adventures series. It lasted only two seasons, but it was a hoot, and one of the many reasons I got myself out of bed on Saturday mornings as a kid. The intro alone made the show worth watching and is easily one of my all-time favorite cartoon openings.
On January 5, 2010, the complete series of Mighty Mouse: The New Adventures hits stores. This 3 disc set is remastered and even has some of the original theatrical Mighty Mouse shorts. Personally, I'm beyond stoked for this DVD release and just may pre-order my copy.