Witch are those best rss engines ?

Hi to all,

Well slow slow using rss submit v2.36 (or i have a bad line or normal take time to submit all?) Have you got a list of those who are most popular more visits or only those on Pingomatic is enought ?
(so many rss motors and do not know if it is good to promote to all or only some like in pingomatic)

I know best is to get maximum but when you have 50 blogs take 2 lines (archives and new ones take hours)

thanks a lot
have a nice day