Desktop > Laptop > Tablet > Mobile
Each one have its feature, but in that order I prefer to play.
Playing poker on desktop in my favourite spot in my room or office on a big screen is amazing. Laptop is smaller of course but portable, I use it when I don't want to sit on the office chair. Tablets is when I'm in a hotel, vacation, or long stays away from the house.
Cell phones only on emergencies if I'm late to registered or don't have access to Wi-Fi so I use mobile data.