If you wanna compare then online gambling is better in all aspects
1. With online gambling you get the most important things which traditional gambling never had , a fair mark which ensures that your result wasn't pre determined
2. You don't have a huge house edge , casinos do have big house edge but in dice maximum a site should ask is 1% which is the industry standard
3. You can gamble anonymously in online gambling
4. You also have no tax policy in online gambling
But traditional gambling still has one advantage
If the casino refuses to pay your profit if you are in USA you can sue the casino and even ask for compensation
If we talk about which one is better, then if think it will vary from individual to individual. All of us have our own taste, likings and dis-likings, so what I like might not interest you even a bit. All we can do is give the basic difference like traditional casinos are crowd and a person has to go there while online casinos provide remote access to all games so a gambler can gamble from anywhere. Ultimately, both are ridiculous.