Thanks for your insight!
I didn't think about the 20% faster means 20% lower RPM part. That makes sense, but I'm mostly only in 4th gear at any given time, since I'm usually on the highway. So would it make sense to have shorter gears in 1st and 2nd to accelerate faster/sooner/easier and then have 'cruising' gears in 3rd and 4th?
I re-did the calculator, so that it was at 2000 RPM at 60MPH with 22.5" wheels/tires. It still shows that the 245 is a better transmission for lower RPMs, but is more accurate to what I would see. (my tires are currently only ~22.5", taller tires will definitely help)
A245E Transmission Gear Ratios
A246E Transmission Gear Ratios
Hybrid Transmission Gear Ratios
I guess at this point, my question is would it make sense to have shorter gears for acceleration and then taller gears for cruising?