CatCoin was the first failcoin (Seriously, BTC specs?) of 2014.
KittehCoin was a massive pump and dump (Was pretty good for me though

)
NyanCoin has good devs, community support (even from DOGE), and is licensed by Christopher Torres.
When you compare these side by side, it's not even close.
I was there from the very beginning for all of these coins and I read practically every page of the forums for each one. What you see coming out of NYAN is a whole other league compared to what Cat and Kitteh tried to do.
Agreed, the only reason why NyanCoin didn't take off swiftly was that
other attempt to make a coin of the same name for a quick pump and dump. If that hadn't happened then NyanCoin would be in a much different place today.
Not that I mind all that much considering the fact that it allowed for quite a nice stretch of low-difficulty mining before things picked up!