Since you consolidated I am going to paste my answer from the other thread here:
If you are looking outside the U.S. Dr. Pablo Clavel (
Medical tourism in Spain and spine surgery - Barcelona Spine Center) is a good choice, some reasons for recommending him:
1. He did my surgery :P which I consider a success thus far (3 levels 8 weeks in)
2. Overall reputation for quality work on this board (search the forums)
3. He has an excellent bedside manner and exhudes confidence, but not arrogance
4. The value at his clinic hits the sweet spot, cheaper than Germany but much higher quality than India or the like
5. The overall package and the people on his team - top notch, relatively easy to get a hold of and deal with
6. Barcelona - the city is awesome, arrive early
7. The number of procedures he has done, he has implanted well over a 1000 M6s and has done numerous multi-levels
I could go on but I would highly recommend you comb the forums to read patient stories, this is the best way to get a feel for his quality and what to expect. Also arrange a phone consult with him.
Good Luck,
-Jeff