OK, so it seems that brushless is here to stay and could be the more powerful, less maintenence, less power sapping answer to our prayers, ( I wait to be corrected

) but which is the way to go?
A lot of you guys and gals have been using brushless for a while so which makes and models are cutting the mustard and which are leaving a sour taste?
From your trackside conversations and personal experience there must be some shining beacons leading this technology and some pale immitations jumping on the bandwagon. As proud oOplers, it's your duty to share the knowledge!