VS and Yu-gi-oh
1) Diversity in building different deck types: While there are many types of decks that can be built for fun in Yu-gi-oh the vast majority are not tier-1. VS has shown a much better assortment of possible deck designs that can be played at the tier-1 level. VS=8, YGO=5
2) Cost less to build good deck: The initial cost to get into a tool chest of cards for Yu-gi-oh is huge, since almost every card in what turns out to be in every ones basic deck plus the few others to make it somewhat different is an expensive one for a truly competative deck; but after that it is not to bad to collect the tech and monsters to make the few changes you need after each set release to make for the tier-1 meta because there are not that many good decks to choose from. On the other hand VS is full of opportunity. Commons & uncommons are essentil to any deck build. Rares are not as expensive, save a few. The game however, moves itself forward with each set and alters the meta. New teams with new mechanics allow and even determine the need to always add tools and change teams in order to stay competative in the meta. Decks are not cheap, but not to bad. The cost to stay up with either game is about the same but both are somewhat expensive by some standards. VS=7, YGO=7
3) Ruling simplicity: This is where it gets different. Yu-gi-oh is fun. I both play and judge at the Regionals and pre-releases. But this game has had alot of ups and downs with the rules. It has improved over the years, but frankly it is an unnnecessaryly confusioning and poorly constructed set of rules. It requires constent updates and rulings to keep players and judges in the know. VS on the other hand, while not a simple game, is straight forward, clear and well structured. It may well be the best written set of CCG rules out there. It is a real pleasure to Judge for VS. VS=9, YGO=5
4) Ease in learning game mechanics: Yu-gi-oh is on the surface very easy to learn, but because of the rules, it always requires a judge for all but the most devoted to sort out all the confusion. VS has a longer learning curve, but I have noted that the more you play and learn the rules the less I need to be there as a judge for them. The rules are the best way to sort out questions. VS=8, YGO=5
5) Different kinds of combo: This is an open ended question. Since Yu-gi-oh has so many interesting combos. If you can get the cards together to pull them off they are usually effective. However, the difficulty and consistancy in pulling these cards together and not falling to your opponents counter plays make most combos not very useful, so they do not see much play. VS on the other hand has a great deal of options for combos, but most are not game breaking, since the game is fairly balanced. They are more necessary in VS; you put together a combo, perhaps a small one, but it is only part of the path to a steady, controlled path to victory. Combos are more varied and less impacting in VS. With that said...VS=7, YGO=8
6) Art design: Somethimes the art in Yu-gi-oh can be down right stunning and beautiful and other times you scatch your head. VS, in my humble opinion, has been rather consistantly great as comic book/ super hero art goes. I love the VS card artwork. VS=9, YGO=6
7) Overall score: As a total playing experience, Yu-gi-oh has been fun but at times agravating and disappointing. I still collect, play and Judge, but VS has opened my eyes to what a true CCG should and ultimately is; it has been a very good experience on most every front. VS=8, YGO=6
So there you have my two cents.