I'll start this post by admitting that I've read a lot more Marvel comics than DC comics.
That being said, I picked up Titans #22 on a whim when it came out and I was interested enough in Donna Troy to pick up #19-21 and the first collection.
I mentioned my newfound interest in Donna Troy to a friend who's much more into DC than me and... this triggered an impassioned speech about how the current Donna isn't the "real" Donna and how DC have screwed up her character beyond all hope of redemption. I was left with the distinct impression that I'd done something bad by giving DC my money for those Titans issues.
With that in mind, can anyone suggest what I should read to discover the "real" Donna Troy? It'd be helpful if it was available on Comixology, but any suggestions are welcome.
Thanks!