Yea it was the days alright.
It depends what you are looking for really, if you want to go out for a few drinks at night and have a good choice of resteraunts etc, or ramble around during the day doing some shopping or getting a bite of lunch or whatever then I would suggest Kilkenny.
If you are just going to chill in the hotel then maybe the Killerig is for you.
The only thing is the Killerig is a bit outside Carlow, so its awkward if you want to go in to Carlow in the evening for a meal, drinks etc.
Have you stayed in the Killerig by the way? Just looking at the pics it doesn't look anything overly special?
By the way, I would suggest the Newpark over the "Aspect", plus its cheaper on Hotels.com @ 220 in total for 2 weekend nights:
The Pembroke is also very well located and they do 99 euro advanced purchase per night: http://www.kilkennypembrokehotel.com/
No harm giving them a bell either and see what they'll do for you