Thailand.
1. The weather is perfect for dec-feb.
2. You're on a honeymoon, you'd definitely enjoy this place for multiple reasons.
3. Bali is too crowded because of the fame it got lately.
Hey Sanju, I would say that both Bali & Thailand would be good, but it all depends on what you're looking for (experiences) and what's your budget! Bali would be slightly more expensive than Thailand :)
Totally Depends on Your type of trip means if you are going for Honeymoon then Bali is the Best and if it is a casual vacation then Thailand would be most preferable. For Both Places you can contact us through our Profile.
https://www.tripoto.com/profile/way2dreamholidays8435521