I hope my experience over the last two-three years will be of some help. I believe my skill level improved during this time-frame and this may affect my perception of rubber suitability. Equipment testing is very subjective but I will try to be as objective as possible.
My blade of choice during this time was the same Samsonov Force Pro Special Edition (SFPSE, a light clipper analog) and I use inverted on both side. I consider myself an all-round player, like the great Samsonov! One caveat is that I rarely play with actual people but I train regularly, albeit my training sessions are short, against a robot. While some aspects of the game can't be trained, a robot training provides an objective view of the progress. I believe the progress is real, but it is also very slow.
Really liked C-1 (black)
Advantages: great grip, easy to lift low ball, easy to create low spinny serve, insensitive to incoming spin.
Switched to G-1 (black) and originally struggled with it but ended up using it for 1 year.
Advantages: faster and more powerful than C-1
Disadvantages: difficult to lift low ball, sensitive to incoming spin.
G-1 forced me to learn to hit more into the sponge as opposed to more tangential shot for which it was ill-suited in my hands. I believe drilling relying less on brushing expanded the repertoire of my technique and I became more flexible with how I engage rubbers other than G-1. Overall, G-1 is a good all-round rubber but I would not call it friendly, possibly because of the hard top.
After G-1 I tried T80 and found it simply superior to both C-1 and G-1. T80 seems to combine only the good properties of these rubbers and it is faster than G-1 but not a speed monster. T80 is easier to operate than G-1 especially at low speed and T80 is more linear. T80 is a light weight rubber.
C-1 and G-1 lasted forever for me. I could not believe how long they kept going. But, most recently, C-1 through me a curved ball. A brand new sheet (Red this time) played totally differently: less control, less spinney. The sheet is much softer to touch than the old C-1 (Black). Either I got a bad batch or there are significant differences due to deferent coloring dyes.
For me, Mizuno Q5 seems like a slight improvement over G-1 but I did not compare them side by side.
FX-P I tried briefly and I found it too soft and too slow for me. I would put it somewhere between G-1 and T80 in how it feels during play. FX-P in some ways is more like T80 in that it does everything in a friendly manner but plays slower and softer. FX-P is extremely friendly, G-1 is not. If I could go back to when I restarted TT as an adult, I would have gained the most benefit if starting with FX-P or C-1 (black) or T80.
I will also mention V-11 Extra. In many ways it is similar to T80 but slightly softer and more direct. In fact, for me, it was a bit too direct on SFPSE on FH and required extra wrist action. On more flexible Acoustic V-11 plays even better but I still prefer T80 there as well. V-11 is very light, lighter than a sheet of T80 with thinner sponge, which is a very light rubber already.
I tried other rubbers as well, but the above set seem to share many similarities. I could further split them into three groups by similarity: Q5 and G-1 (hard top), T80 and V-11 (medium overall hardness, good speed), and C-1 and FX-P (softer, slower).