Theres only 2 main choices for the electric flyer, and that is either the Deans connectors, or the gold, bullet type connectors.
I like and use the 4mm bullet type, but thats me.
( Gold bullet connectors are available in 2mm, 3.5mm and 4mm )

There's not a lot between them, as they are both excellent, it's down to personal preference.

But whatever you do, standardise all your plugs and leads etc, to just one type, it makes life a lot easier for yourself [sm=wink_smile.gif]