Well this question sounds a bit like Who is the best person for me to marry? And why not, there is a lot at stake if you end up with the wrong person and in this case a fraudulent gambling site! Like in marriage, there is no one size fits all in online gaming as well. You have to do your own homework and arrive at the decision fully aware of the fact that a wrong move can spin your gambling career off-gear.
A few broad hints may however be helpful in making the right choice.
Go for third party endorsements There are lots of player resource sites that can give you a lowdown on the various gaming sites available. They even have popularity charts on them to indicate how each one of the participating gaming sites fares on various parameters. Charts like Top 5 or Top 10 can help you help you start on your search unless you already have an experienced friend who has tipped you on some reliable sites.
Check those certifications While some authentic associations do lend their credibility to the member gaming sites, do remember to take this with a pinch of salt. Not all certifications can pass the acid test and quite a few memberships can be bought off the...