Wait for an 2020 MacBook Pro ARM Option
Apple announced the switch to Apple Silicon, custom ARM-based processors, at WWDC 2020 in June.
We've heard from Ming-Chi Kou that Apple will release a 2020 MacBook Pro 13.3 with ARM processors in Q4.
This will reportedly deliver a 50-100% performance boost over the current models. That is significant, and it could lead to a vastly better battery life as well.
If you want more power in a small package, consider waiting for the 2020 MacBook Pro 13 with an ARM processor.