Great advice here.
If you want more specifics, about rod and reel selection, a lot gets into personal preference but I think most will say that a 7'-ish MH/F rod will cover the majority of applications you can throw.
I would also say, if you are someone that likes to throw a lot of bottom contact presentations (jigs, T-rigs, etc.) I would put as much money as I can afford into that rod. Being able to discern the differences in structure and cover under the water can be huge in fishing those types of presentations.
As far as gear ratios go, all of my reels are 6:1. You might want a 7:1 for fast moving applications or situations where you'd need to pick up slack quickly. 5:1 are usually used for cranking, although I think you will hear a lot of people that us 6:1 for cranking as well.
If you give us some more info on what you would like your 3 set ups to be used for and price ranges on the remaining gear we can probably help more. The Revo S is definitely a good place to start if you ask me. I have a gen1 and 2 and I think they are solid reels.