Power Washer:
I did a lot of research, power ratings, price, quality, motor, etc. Also watched several YouTube videos and settled on a Greenworks GPW2300. Haven't used it much but so far it's living up to my expectations.
Blower:
I bought a DeWalt because I have other DeWalt products and batteries that are interchangeable. It's been a great unit, surprised at how long it will last before the battery needs recharging.
Whatever battery-powered device you buy I suggest paying the extra and getting it with a brushless motor