I like em both very much ,and their are excelent pieces of hard labour.The difference is at most some cosmetic details.I currently use Mymap ,because i can play Agc-Eep on it ,before that i played Kasperus map a while wich hasn't a scenario file yet for Eep.
I do like how both mapmakers have implemented islands and small but historicly important colonies ,like how Lido (Venice) is represented in Mymap ,or colonies in Asia like Goa ,Macao or Hong-Kong on both Maps ,and numerous more cases.
But in the end they are still WIP i presume.So i think it's more constructive to have a discussion wich province's of one map you think are better done than on the other map.So that both mapmakers can add these cosmetic touches that are liked.For ex. i prefer Mymap's Lido (Venice island) better than the representation of Venice on Kasperus map ,though Kasperus map has IMo a nicer India for colonization purposes ,i also prefer Kasperus Hong-Kong and Macao area ,But as to island colonies in North America i think Mymap has some nicer featur's like Jersey island.
I somewhat favor Kasperus map for the Holland Area ,mostly because Mymap doesn't include the Shelde river (bit of nationalism sentiment here) Mymap Has lots of detail in the balkan's.
Overall both map's add lots of new provine's spread over the map the one more in one area than the other ,some cosmetic changes won't change that much ,(on a mass of 400 province's) but they can be fun for gameplay reasons.