I've collected around 40 varieties of Japanese Maples so far, and I've noticed that some varieties are vigorous and healthy while others just stagnate and fail to perform or live up to the hype. Unfortunately it seems the world is bloated with many cultivars that probably should have never been given a name in the first place, or are mere collector's curiosities. I'm tired of spending money on trees only to be disappointed. I want to see mature specimens in my lifetime. Before I go throwing more money away, I'd like to hear suggestions of proven performers; especially in terms of vigor. I know the lists have been done of everyone's favorites, and I've read those, but I'd really like to hear about trees with growth rates that rival the species. Some of my cultivars with exceptional vigor: 'Bloodgood' 'Arakawa' 'Seiryu' 'Ryu sei' 'Trompenburg' 'Glowing Embers' (Dirr version) 'Lionheart' 'Sango kaku' 'Palmatifolium' Some of the usual suspects I realize, but they are popular for a reason. Also I'd be open to suggestions for other species of Acers as well.