At least the Trop is no longer.
As for best ballparks, I can accept OPACY as better than Nats Park. Nats Park is perfectly middling. Plain, if not ugly, with bad drainage in the stands in spots, but very good site lines, good SRO options, and overpriced but decent quality concessions. I have not been to many parks other than Nats, OPACY, and Fenway that are still active (Kingdome, Vet, 2d Yankee), and I have not been to Fenway since the renovation cycle was completed, but I think there are parks you go to for one-time experiences like Fenway and others that are good for regular attendance. I think Nats Park is low on the first and average on the latter.