Poll..Deans or Gold Plug connectors for you batts

[bruce750i]

Deans
Traxxas didn't even use solder on some of my esc's plugs.(easy fix tho) If one had to couldn't they just use two deans instead of one on the esc & lipos? (soldering one wire to both plug poles, one for the positive and one for the negative) Also when making a series connector could the plugs be sized different per load at connection? (1 x Dean at each lipo and 5.5MM at esc)