Rip-offs are sad, but the fact that you spent 14 months doesn't make it a better game. It means you took too long to make it. Threes is a great game that has done well, but the vast vast majority of mobile apps don't make enough money to justify spending 14 months on. I really hope that wasn't full time work.

Also, time/effort/money spent developing a game does not make it better or worse than other games. Some dead simple things are awesome, and some things that took forever aren't. Again, I have and like Threes quite a bit, but the time it took to make doesn't make it better than anything else. I haven't played the knockoffs, but if they are doing well I suspect they are decent games in their own right.