Silver Streak SE, Nomad Hybrid, and Dynasty - when I can use them. The lanes at getting so dry by the second game that I now think of my really mild/older stuff as "my favorites". It is kind of like owning several sports cars with no place to "drive them" anymore
So, my favorite RG economy car/ball is the Neptune at 2000/4000 Abralon.
Of course, those of you that know me realize I am throwing a lot of semi-vintage stuff these days from various makers. PowerKoil 18 works well on today's conditions.