Frank_Rizzo - 9:41 am on Sep 29, 2013 (gmt 0)
They are both shared so you are sharing with other sites and that could be a problem at peak times.
If budget is not a constraint then go full dedicated.
Yes SSD is way faster than HDD but RAM is faster than both and using that for caching and indexes will be a big boost.
Hardware is not the only thing to consider. The O/S and database need to be tuned. That is something, which is less likely to be an option with shared hosting so again: go dedicated / managed server.