I am totally with you on iTunes for podcasts. I know a lot of people complain because it doesn’t have this feature or that, but it serves my needs perfectly (except for I wish it wouldn’t stop updating podcasts just because I haven’t listened to one in a while. Minor complaint though.) As far as full posts, it depends on the blog too, some sites have their RSS feeds to only broadcast summaries. And I was getting full posts from Lincolnite for a while, but when the redesign went live, it went back to just being headlines for me. But I live, Lincolnite is a site that is good to visit for what’s there beyond what gets pushed through RSS, such as the forums and whatnot.
Also, importing should be pretty painless, assuming Bloglines makes it so (I’ve never used their service). Just look for an export feature, that will turn all of your subscriptions into a single .opml or .html file. Then, open up your news reader app of choice, and look for the import subscriptions button and select that .opml or .html file. It’s a pretty standardized thing, assuming Bloglines allows you to export your subscriptions.