yes definitely,,, in order for you to erase your doubt about blogspot... from my own experience they can rank too.. my blog has a pr1 before this new update of google but this latest update it went a little lower to pr3.. to cure for your skepticm click this... and try to use seouake for you to know about my pr
Yes it can. Concentrate on getting great, useful content for your blog and building backlinks and the PageRank will come.