Hello
I am a long time BRP player starting with RQ2 in'79. I also have played and own Call of Cthulhu, Stormbringer and Pendragon. RQ3 is my favorite version. RQ Vikings was used as the basis of two of the three campaigns that I have ever run (the other was an AD&D campaign in college).
I own the MRQ version.
I am eager to see the new BRP version, to run someday some adventures in Prax/Pavis. But if that Mythic Isles is released maybe ... I go Viking again.