Foam choices

So,
What would do the best foam job on a car?

A foam cannon on a smal press washer lance.
A foam bottle (gilmour, eg)
or one of those dedicated foam things-Tornador
....there are several kinds of Tornadors. What's the effective difference?

TIA

 

I have the Gilmour that goes on the end of my garden hose and the MTM foam lance that goes onto my electric pressure washer. In my experience the MTM foam lance produces a nice, thick amount of suds (varies with soaps). It's great but when you don't want to drag out the pressure washer and hook everything up then the gilmour is perfect. They both do a great job but it can really depend with what kind of soap you would be using.