never caught a walleye or white bass on the fly. had the fortune last year to hook into some white bass while walleye fishing.(same lake is loaded with both) as far as being a fighter they put up a fight that you wouldn't believe. i'd put them them right there with smallies for fighting ability.
don't like to plug another site so sorry if i offend anyone. as for a pattern i found one at http://www.tie1on.net/
don't know if that's what you wanted but that's some of the site's i've been using for tying patterns.