I thought they are worth it? Then why still have a doubt or say that they still can't guarantee us a profit? Anyway, coins that you list are popular and they are still among the profitable list despite some of them are not getting enough attention or have some anomalies. I only want to say that not all old coins like them are profitable and then some new coins are also legit and can do well more than them.
I don't see anything wrong about the metrics the OP provides. All are responsible anyway for the growth of the token or coin. For Dogecoin, it is indeed it was the community that is noticeable the most but that then contributes to the others.
I would say Tron isn't looking that great, since the founder also left, Tron doesn't look great at all, he tried to get famous again by buying that "taped on a wall banana" art thingy as well, but like all other attempts, he is not getting more famous and Tron isn't looking good. Doge is also a memecoin, so if you are interested in memecoins then doge is the best one out there and to be fair only one I would suggest to anyone who wants to invest into any memecoin, but to some people like me we avoid memecoins, even if it means doge.
The other two are of course good ones, both ETH and ADA looks to be strong cases for the future and could make a lot of money. There isn't any easy way to make money in the crypto world, but those two are pretty solid.