Some great Waves plugins, some less great. Ditto on UA and most others. Far better to mix
and match and build your collection gradually. That way you can gett to know one or two
new tools well, rather than investing lots of time learning all the new tools in a bundle.
Reaper's stock plugins are pretty good, and the wet/dry blend control for each insert
often means you can get away with slightly more heavy handed plugins than in some daws.
The SSL Duende bundle is a nice bite-sized bundle and would add something new to your
setup. DDMF LP10 is inexpensive and very good, and again adds to what you have. And a nice
tape sim could be useful... Tone Boosters Ferox is nice and colourful, and benefits from
the wet/dry control. Melda do a very comprehensive bundle for a decent price, but the GUIs
can be confusing. Depending on what sort of material you're working on, I'm sure we could
offer a whole lot more advice...