There is quite a difference between an SSL, Neve, API, etc.... What type of sound are you going for?
I use SSL's Duende channel strip and buss compressor. I worked on SSL consoles for years and I am very familiar with how they work. I chose Duende back when it was a separate box and have since moved to the native plugins. They work and sound very similar to the consoles I have used in the past.
Since I'm not a big fan of SSL's preamps (not sure anyone ever was), I have a couple API, ADL, Ampex, and Universal Audio pres as well as some outboard (1176 and a couple tube Pultec style eqs).
All in all it works really nice for me. Maybe you should download some demos and check them out and see what gets you the sound and workflow you're looking for.
Waves plugins can be expensive but they run sales monthly and every weekend, so that's usually the best way to get them if you go that route.