Other than Eleswer(spelling) where else would we see the most khajiit/khajiit would be seen in cities?

Probably in cities that are close to the Elsweyr border.

There are quite a few in Leyawiin.

Leyawiin in Cyrodiil.

it was originally a Khajiit City is Elsweyr, but was given to Cyrodiil as the result of an agreement between the Mane and the Empire

http://uesp.net/wiki/Lore:Leyawiin

How about hammerfell, high rock and vallenwood?

Valenwood may have a few Khajiit heavy cities, but not many (Relations between the Khajiit and Bosmer aren't that great).

as for Hammerfell and Highrock, likely similar presence to what we see in Skyrim.

as stated, the City with the largest Khajiit presence outside Elsweyr is likely Leyawiin