It honestly depends on your needs. I needed a compressor, eq, limited (mastering), reverb and I got some more plugs.
I also have the waves bundle and I go to the sony's more often. I definitely like their eq better then renEq (RenComp is actually really good), but I think the sony comp is more transparent. and the limiter, I feel, is definitely better than the L2.
Again, these are just my opinions. Your best bet is to download the demos and see what you feel works for your specific needs.
...don't forget the Massey plugins..they have been getting some great reviews
http://www.masseyplugins.com/
and their price is right!
Keith
www.keithlubrant.com