I`ve read and heard that the IPS panels like that Dell U3014 aren`t the best for gaming, and have lots of ghosting and other issues. I haven`t tried one myself yet so I can`t say.
I`ve got 3 monitors setup too on my main system, 3 24" Asus 144hz monitors. I was going to go with 27" BenQ 120hz, but went with these because they were on really cheap, almost 1/2 the price of the BenQ's.
I also have a 40" Sony LED 120hz TV that I run as a home theater PC screen in my office, and put games up from time to time on it just for the purposes of seeing how they look on it.
There is NO comparison to the 3 monitor setup, at least for Aces High or any other game. I would even prefer just a single 24" 144hz monitor over the 40" TV screen if it came to that.