Simple Green is all I use these days. Why use something toxic and flammable? Besides the inherent dangers, where do all these chemicals end up? I seriously doubt anybody cleaning their reels disposes of the used chemicals in an environmentally proper way. Simple Green is biodegradable, and does not stink up the joint. Rant over.
I used to grease all bearings, except spool bearings, but no longer do so. I have over thirty reels of my own to service over the winter, plus the reels I do for other people. That's a lot of time. Getting a bearing full of grease clean is very time consuming, and I use an ultrasonic cleaner. I now use 90wt gear oil for all frame and handle bearings. Just as smooth as grease, easier to apply, and a lot easier to get cleaned out than grease.
So, 90wt gear oil for frame and handle bearings.
TSI321 for spool bearings, levelwind gear and pawl, and IAR bearing.
Cal's or Shimano drag grease for drags and gears.
The only exception is for the three spinning reels I use for winter trout fishing. I use Krytox grease for gears and drags in these reels. It's good down to -80 F. A synthetic fluorocarbon grease with PTFE additives. I got a small sample of this from a DuPont rep a few years ago. Had enough to do two reels. I bought more after one trial. I'm thinking about using this grease in all of my own reels. I bought a two ounce tube, and since it takes so little to do a reel, I may have enough to last me forever.
Just my opinions. Feel free to disagree. You won't hurt my feelings.