blogger (atom) vs rssbot

[robshaw33]

hi guys
I'm having a go at doing my own seo, i tried cheap outsourcing and while it was a bit disappointing as i couldnt afford to keep it up for as long as they said they would need to get top results, i did learn quite a lot.
I've always done article submission software, started doing socialbot which i like, bought pressbot after seeing good results from press releases with the outsourcing company.
I'm curious about rssbot.
I am really showing my ignorance here i know - basically i always put all new content that goes up on my website on blogger.com ie i have a google blogspot -
Now i know that all blogspots have an "atom" feed on it - am i right that this sends all my new content on my blogspot to a load of blogspot syndicated atom sites??
What i want to know basically is - is there any point in me buying and putting all my content into rssbot - because rss is basically the same as atom -
Would using rssbot simply be replicating what i'm doing by posting on blogspot??
thanks for any advice guys
rob