The Joyce on 4th has great chairs. But perhaps you don't want to judge a restaurant purely on their seating?
The food is also really quite good as well. They take ordinary Irish fare and simply make it better and then throw a few less conventional items (like some great signature salads) onto the menu as well. The chicken pot pie might be the best in the city and they know how to pour a Guinness. During the summer the Joyce has a highly underrated patio that is great for people watching.
Regrettably the service is often a bit on the slow side and if you aren't drinking alcohol there is a chance they will forget to bring you your water or pop. And they are defiantly not the cheapest pub to grab a bite in. Overall I really like the Joyce -just not all the time.
Seriously, great chairs though.