A OP here, I read all the posts and see FSDT seems to be a favorite.  I'll take your advice.

I do have DD Chicago City X, Washington DC and KSEA and SEA airports and I must say they are all unbelievably stunning.

The DD KPAE airport is insane.  You can actually go thru the Boeing facility.  DD KSEA is also awesome. I get a solid 30-35 fps tere compared with 20-25 fps at Flytampa's KBOS.

I have all FSDT airports and they are great.  I guess it like choosing between a Ferarri and a Lamborghini,

I'm done with fsdt until they find a better drm.

Or no drm like fly tampa would be better.