Deans all the way tamiya plugs are nothing but garbage no one uses tamiya connectors in RC that demand large amp draw.
Can't go wrong with deans ... just have to have a very hot solder gun to put them together ...there are other banana type plugs like the ones losi makes that are also good and easy to solder together.

http://www.horizonhobby.com/Products...rodID=LOSB9616