If you don't know some terms I think the best option would be for you to study them first. There are loads of info that you can find in google and also in this forum... Then look for some sites that review the casinos so you can check what they offer you.
Is there anything like best gambling site? I believe almost all gambling sites have their flux and limitations. Some with deposit/withdrawal fee while other might have non. We always tend to go for those gambling platform that interest us especially when it has good reputable, deposit bonus, quick transactions, good customer service etc. Choosing from a random of gambling platform here on this forum should not be a problem because their are many good ones here.
There are some notable differences but most of the time they are all just the same.
They differ only in;
1. Design
2. UI/UX
3. Promotions
4. Support responsiveness
Being the best would be subjective because we do have different preference when it comes to site that
we do love to play on.
This true that this kind of topic always result on a subjective opinion but what if we can use the total number of active players on the Casino to determine the best among the top tier Casino. No one use this as basis since most of the time the criteria that you mention is always we are looking but what if base the result on total user since this active user will not gonna stay active if the Casino is some kind of shit.
The only problem is if the Casino will display a legit amount of there active member on there website.
You're right. Best gambling website as a topic varies from one player to another. We have different tastes and we look for different features and functionalities whenever we search for a gambling website. Some might prefer this website over the other, while you might find it absurd for your own liking because you don't click with the graphics or conditions. It's all a subjective matter. It depends on what are you looking for and of course, your first-hand experience in it.
Looking for the active number of users is a nice move to determine whether a website is worth it or not. Because of course, the players will be the living proof that they are offering good quality of services, hence, there is a lot of patronage. However, I also agree that some website might manipulate it, so it's still risky to base on that alone. I suggest, OP would check all the reviews and feedbacks here in forum and in other platforms as well to know and verify.