Looking for some tyre's for my Twenty in 20" (ISO 406 I think)

I used to run schwable city jet's on my commuter and have been very very happy with them but they don't come in the right size so I'm forced to change to something else , but that's the sort of thing I'm after.

After extensive research I've come up with

schwalbe citizen
schwalbe marathon plus
Kenda kwest

Can anyone add any to that list or if you have tried them any comment's on those listed.

Im after a reasonably slick tyre which will cope with short excursions away from paved roads , Reasonable puncture resistance (I don't mind fixing the occasional flat) and good price vs longevity (I don't mind a expensive tyre as long as it last's).

Thanks in advance.