Color: must be red/blue bi-color and plain blue VTs. It's just too...common for me.
Tail type: DBTVT/VT. DBTVT just...ugh and VT is really just too common. Occasionally one catches my eye though.
Color: yellows, coppers, dragons, DFs, anything unusual
Tail type: HMDBT, but the lobes have to be even, HM, OHM
Atlas blue metallic marble HM
Forest red VT
Leander red/pink dragon Delta
Mister Intelligent orange/white BF VT
Phrixus teal marble dragon HMPK
Psyche blue/red PK
Rhea black/red BF DT
RIP Alexander, Morpheus and Phobos. You are missed :'(