I knew that it is really possible to transfer a blog from free hosted one to self hosted one of the same blog plaform. E.g. free hosted blogspot to self hosted blogger or free hosted WP to self hosted WP.

But, how about a free hosted blogspot transfer to self hosted wordpress? Is it still possible???

You can try using the Importer which is built into WP. Sometimes it works and sometimes it doesn't.

The downfalls associated with doing a transfer are that your images won't transfer over and you will need to correct the Permalinks for Pages and Posts.

I have done many transfers for clients and found the best way was to manually transfer content via copy/paste.

This will guarantee the Permalinks are correct, you can upload the images, and maintain Post dates (if you want) by back scheduling in the WP Post edit window.

This can be time consuming if you have a lot of Posts and Comments but you know that it is done correctly.

Don't forget to delete the content from Blogger once you publish WP, so as to avoid duplicate content.

That is possible as per my knowledge. I create in wordpress and embedded in my site and it works fine in my site. That is will provide you a much benefit in search engine. Keep in mind that the blog should be totally unique.

Yeah it's possible to transfer all the files. Or you can manually copy and paste it to your new site but the problem is, what you have already hundreds of post in your old site. This sounds tedious but you can still do this if you really want.

there's an option their saying "Export Blog" maybe it meant you can easily transfer your blog postings from a blogging platform to another.

have you tried tumblr?

Export your RSS from your current blogspot blog and after making your wordpress log, import that RSS into your new wordpress blog and all of your posts will be added to your new blog too.

Never tried doing this one. What are the advantages of this?