fvw
3
Maperative looks nice, and the stylesheet is definitively less complex than others, but
I got Windows on it’s knees. Zoom=13 was not a serious problem, with zoom=16 it came almost to a hold.
On Debian stable I faired much better.
I used the googlemaps style. Very acceptable, needed a little tweeking, found a minor bug in the rules.
The major problem left was the complexity of old cities… 
Thanks for your reply.