I gotta be nuts but all I use for all Purposes is Waves Plugins
Well i explain. Since maybe 1996/1997 when I bought one thing called "Waves Native Power Pack", I got used to the interface and been upgrading and updating... at the mo' I'm with Waves Mercury Bundle and it includes all sort of things.
As for the reverb, I use most of the times Waves Renaissance Reverb and just like Nick, sometimes I use a little Delay.
I guess that a thousand of things are good these days but I don't have time to dig everything and i prefer to do music instead of waisting a lot of time learning new stuff that's why I always keep the same platforms and plugins, just because I'm used to them.
Like they, ain't broken don't fiix it
Just for the record, I keep an Yamaha DX11 keyboard that I bought in 1987, can you belive that? It's the keyboard I use to record 80% of what I do and I won't sell it because it rocks. Only when I got Piano parts, i use a Roland digital piano because of the keyboard so similar the real pianos.