While I've always been happy with my summit branded parts, I went with the sniper for two reasons.
1. It's made in America (some people don't care)
2. I have more faith in Holley to have the parts I need to fix it 15 years from now than I do in Summit's Chinese supplier.
The quality of parts made in other places can be less than those made in America. At least in America you know that there won't be lead or other stuff on the parts and that they won't break easily. Also, Holley is a well-known brand for their parts. I do recommend you go with them.