Reccomended 15x7 Tire/size for GRIP

[i8yourfwd]

Ok after some searching, many threads had different answers for the same question. I'm looking to put a decent but low priced ($60~$80) tire on some 15x7 wheels. Here are the different things I've read while searching:

Regarding Sizes:
225/50/15- Reccomended tire size. Obviously should be better because there's more contact patch, although some say to NOT get it because sidewall flex will in turn give you less grip. Unless your running an R compound tire (I won't)

205/50/15- Many reccomended this size but the arguement is hand in hand with the above size. 225 has more contact patch, 205/50 would have less sidewall flex (i think?)

Regarding tires:
ES100- Heard reviews on both sides of the spectrum. Some say they're horrible, some say they're great.

Fuzion ZRi- Very low cost tire, but what about the quality?

Kumho Ecsta 712- Some say it's the best bang for your buck tire. Decent grip and long lasting

What's "right" for the sizing? Tire suggestions?

cliffnotes:
Need a low priced tire for a 15x7 rim for GRIP