I first played Dark Souls, then Skyrim.

I'll share my most sincere opinions about both:

Dark Souls

• Challenge/Reward: everyone hits this topic, but not by chance. I can assure anyone that it is rare to feel soo great, so happy and so amazingly relieved after defeating that damn boss that just bet the shif of you for so long.
• Not a gear check based game: You can do any boss of the game naked with the starting weapon, if you are just good enough. gear up if you show any repect to your integrity, or just shield up naked for a trolling badass!
• Fantastic comat system: insane control over your character, you can be as goo as your skill allows, miss a button and you may end up dead. Just brilliant.
• Involving: the atmosphere, the few characters we encounter along the way, it all makes us want to know wwhat is going on, and since it is not just layed in our lap by the game, we have to look around, read about, link info... we may have even to play through it all again to get a bit of lore missing. And it feels great when we do get there.
• freedom: this is a great adition to the game, they gave us the choice to go wherever our curiosity and skill can take us. very few locked doors, triggered boss encounters or map availability is hindering our way to conquer a new piece of the game.
• environment: feels dead, everything is dead! but don't mind, that's supposed to be like this. The atmosphere is amazing and always heavy. Exploring never felt so good.

Bottom line: This is definitely the "hard-to-get girl" of gaming. You will dream about it, you will have to figure out every single aspect of every single foe, but man up and rise aginst the beaultifully designed and epic bosses and you will be very nicelly rewarded, like you just regained your own soul.

Skyrim

• crafting system: feels great, enchanting weapons, crafting them, making your ow potions... (maxed BS/Enchanter). the system feels very wrong once you figure out that it`s too limited. the best description I can give is "A worsened (does this word even exixst?) demo version of WOW's crafting system.
• gameplay: just terribly plain. the game feels cheap when you star to play it, eventually you get used to, but NEVER amused by the gameplay.
• combat system: simply falls in the same cenario - cheap > get used to, but no never amused > boring to death.
• dragons: wholy @#$%ing s#@t, the fisrt dragons feel great to fight, tough and really awesome "a dragon wants my flesh" atmosphere. The bad is that EVERY dargon fight feels the same, and to get worse, it gets progressively easyer to beat the hell out of a dragon, even in not so rare double encounters you can manage more than one and still keep your poker face. In no time you just can't feel like killing any other winged beast,  to the point of being anoying.
• Questing: good, extends your playtime and feed the lore of the game. Endless sidequests may be a ton of fun or just make you forget al about your main story. 
• chalenge: none at all. You may find it hard to kill a very few sort of creatures and thats it. the worst ting about this aspect is that as soon as you get the hang of the game's aspects, like crafting, enchanting and the very strict moveset of your foes, you're GOD, the unkillable bastard with a huge enchanted baddas axe who can strike with one hand as heals with the other.
• environment: just amazing. may be the best or one of the best ever. Beaultiful, vast, reaaly outstanding. Crawling with endless creatures to kill and loot. Gives the right atosphere for the game. Exploring fells a bit more-of-the-same, but gorgeous.

Bottom line: Good game, but brings absolutely nothing so exciting to the table. I would call it "Another good RPG". Just don't ask too much from the gameplay too. 

Dark Souls clearly beats the crap out of Skyrim, in almost every aspect. Skyrim talks about a better story, but the role playing and batling feels just an awlful lot better in Dark souls. 

Dark souls: Hard to get all you want from, but it may become true love and your dreams will be sweeter after every boss down.

Skyrim: A very beaultiful hoker, you easily get all you payd for, but does not fall in love with.

In no way does it come close to even the earliest PS3 titles. With the Cell processor and it's extremely powerful GPU, the Sony PS3 revolutionized the world of gaming forever. While Xbox 360 tried to play catchup its entire life, the PS3 was paving the road for gaming of the future. I wish Halo would feature on the PS3 and PS4 only because it would demonstrate the level of constraints the Xbox 360 has put on the gaming world. Shame on Micro$oft for trying to turn a profit and for trying to impede the evolution of gaming. Sony is the one beacon of light in a rather dark gaming community...PS3FanMan4Life

Get Real, fanboy!

Your "Cell processor and it's extremely powerful GPU" is a reasonably good console, kickass bluray player and in no way a "ravolution" in the gaming industry.

I mean, if you consider a complex system to develop to, without any graphics advantage (actually, most games look a bit better on 360) a revolution, than you're just a regular Sony fanboy and there no reasonable argument to fit your damaged brain.