I would say:
Polis - best for a 'couth' kebab. But not quite the traditional atmosphere of the 70s and 80s.
Swan - basic and more 'ethnic' than most. Also has more bondhu cats looking for their late brothers!
Chris' - good for large numbers, BUT Chris has to be there in person for it to be particularly good. Food has been suspected as being pre-cooked and then flashed up again when punters arrive. Hence dry and cremated at times. Usually free kokinelli - particularly if Chris is there!
Sylvanas - Also good for large numbers and food less cremated than at Chris'. Sound all-round kebab house!
All the others - forget it!