I do think the rain is better than snow. I LOVE rainy season. So green and lush.
You can find transfers on this page. I often use this company.
https://tamarindoshuttle.com/
I also use Cristan for transfers... you can send him a message on WhatsApp: +506 8318 3226
You can also rent a car from the airport. The prices really depend on the season... Oct/start of Nov usually have the btetter prices.