>>16772It is great. Yes, the first season (first 50 episodes of Yu-Gi-Oh! Duel Monsters) lacks proper rules, but when the Battle City starts (from episode 55) it pretty much follows the rules with very few exceptions. Even so it is more than worth it to go through the first season too.
GX (the next generation) is fun too, but DM is easily superior. GX is based on a heavy use of fusions. Then it comes to 5D's and actually many people think it is better than DM. It is with the new synchro monsters in a dystopian future Domino City (the city where Yugi and friends were in). The next one is Zexal and they tried to go for a little lower demography (borderline teenagers). It is disliked by many, but also most people think it got a lot better in the second half. The newest one is ARC-V. ARC-V actually features easily the most complex story so far with a lot of intrigues and mysteries going around. It is very enjoyable and many people put on the top, but I personally still like DM the most, with 5D's close behind, then closely behind ARC-V, then GX and at the very bottom Zexal.
I think it is overall a very enjoyable franchise with Zexal being the only questionable one.