pmr - light, not the most efficient but a lovely marker and even better ul'd
shocker - light, shoots amazingly, nicest marker i have ever shot
05 speed - heavyer than the other 2, shoots well, efficient as **** and can be pick up for penuts
a4 fly - heaviest - shoots well, efficient as with all other angels
a1 - light, efficient, is a dream to shoot and has the easy maintenance of being an angel
maintenance is piss easy on all of them (unsure on shocker - getting one soon though) and all can be found relativly cheaply second hand and are all amazing markers