If you see what he did at Alesia, Axona, etc, you can tell he was a patient and genius general. He did many things we find horrible, but also enacted many reforms at the expense of wealthy aristocrats, and put Gauls in the Roman senate. I find the dichotomy of him as a person to be very fascinating.

Alesia is the finest example of Caesar military strategy.

I wrote about it here: https://leonardofed.io/blog/caesar.html