Kenwood all the way!

My feelings on this are well known - having used a KA extensively in a commercial environment and also a KW, the KW wins hands down as the most reliable, most user friendly, has the attachments you want (as does the KA) and KW is all around better quality - in my humble opinion.

Never had a KW burn out on me, gone through 3 KA motors - on a commercial machine.