I am leaning to the MA GR20 as I can listen to them first and see if I like, although I have no frame of reference for what sounds good/bad, I'll just have to see if I like them. They also look very cool imo and are the cheapest of the three I listed. However, they are the oldest (around 2005 I believe) which does give them a cool vintage feel but I worry about if there more likely to break, or if the newer MA/KEF I mentioned would produce a better sound, the KEF are very new so may have better tech to produce better sonic quality.
I'm sure that all of the speakers I mentioned are good and I'm trying to find a definitive answer about what one is the best where there probably isn't just one that is best. However, this is my first setup, and its a lot of money for me so I want to get it right.