Improving Rhythm Guitar?

First, let me say it's a true honor to be learning from you. I've been a fan for a while now, and seeing you on here was what made me sign up

I've always been a guitarist who (in my area) has been well known for his leads, but the amount of improvement I've already gotten from your rhythm guitar lessons has shown me that I need a lot of work in that aspect. One thing that I never really did was learning other musicians' songs, and with all the tabs on the internet, there are millions to choose from.

My question is: Are there any particular Blind Guardian songs that you have a lot of fun playing? I've already learned "Valhalla" and "The Bard's Song." I'm not really asking for a lesson on them (I know that it's hard to do with publishers), but more of a recommendation on what songs I should try to find online tabs for.

Apart from the BG stuff, are there any other songs that you think would help with Rhythm practice?

Cheers!
Jeff