My "other" is for Collinite. If you haven't tried it, I'd give it a go. This VERRRY long lasting Carnauba is sorta different from the others on your list. Actually, I put it over Autoglym's SRP. But you sure won't go wrong with the P21S! If you just want it to look great for the summer and don't mind redoing it fairly often, then that might be your best bet. P21S over VM is great.