With regards to the Ecowitt stuff I would go for the GW3000 with a WS80 and WS40 for rain plus their lightning sensor, this is what I replaced my Davis VP1 with some 4 years ago. There still seem to be some concerns regarding rain detection with the Wittboy.
I have no experience with the Tempest station.
I'm sure others will come with their views as well.
Stuart