My favorite card is Jokulhaups, but since we are doing the best cards....

By far the best card ever printed was Force of Will. It even shows by the play value.

The next best card is Cavern of Souls. This card is going to be a major force in MANY decks here to come. It even makes goblins viable in legacy. That's a plus.

The third best card is probably Mana Drain. This card is nuts.

Recently got into RDW-esque decks and AVR didn't disappoint. Here's my top 3:

3) Mogg War Marshal He's only a common, but elicits a groan from my friends whenever I play him because he usually sets up a....

2) Goblin Grenade 5 damage? Count me in. Sac a Goblin? Eh, they're cheap. For a single red mana?! Sounds legit. This baby has won me multiple Modern matches, including one game where I dropped 3 in the same turn.

1) Thunderous Wrath I like the look of Miracle and a miracle Goblin Grenade (sans sacrifice) floats my boat pretty well. Collecting foils if anyone has them about.

Haha. Forgot Rule 1: No favorites. Best card printed? Tarmogoyf I have been on the wrong end of that thing way too many times.

SWAMP!!!!!!!!!!!!!!!!!!!!!

Chimney Imp is my personal preference.

Jace, the Mind Sculptor not even close

I'd have to say Force of Will, Jace, the Mind Sculptor, and Sol Ring.

In no particular order...

1. Force of Will: A free counter... unthinkable.
2. Jace, the Mind Sculptor: This card turned the meta upside down. Such a powerful card that allowed you to do a variety of things for only four mana. His ultimate is pretty much an automatic game-win, his 0 is a free Brainstorm, another one of the better cards ever printed. His +2 ramps up to his ultimate and essentially allows you to monitor and control your opponents top-deck. His -1 just gets rid of your opponents' threats, no biggie.
3. Show and Tell: Simple insanity, you can drop a game-breaking creature, such as Emrakul, the Aeons Torn for three mana? I'm in.

Snapcaster Mage or Tinker.

Elspeth, Knight-Errant arguably the best mono white planeswalker out there. Two very good +1 abilities and a crazy -8 ability.

Storm Crow. All day e're day

1) Tarmogoyf

2) Jace, the Mind Sculptor

3) Phyrexian Obliterator

Id have to go for Guiltfeeder, especially with all the self milling these days...it makes for a alright throwback!

1. Lightning Bolt. Maybe not the best in terms of raw power. But it is versatile and cost efficient. I am biased simply because I love burn though.
2. Gaea's Cradle and Tolarian Academy are so good because as lands, we expect them to produce one mana, and maybe two with severe drawbacks. They produce amounts that are usually over two.
3. Flash just breaks Protean Hulk. That combo is faster than anything known to MTG, sometimes going off turn 0 (opponent's upkeep)

I know these aren't the best in the game, but for anyone else who plays crazy artifacts like I do, they will know why I picked:

1. Sol Ring
2. Mana Vault
3. Grim Monolith

1) Storm Crow

2) Bone Saw

= win :P

Hmm. So hard to pick a "Best" card. Let's see. (avoiding all of the Clearly broken cards. Jace, i'm looking at you.)

1. Puresteel Paladin Allows you to equip for free as long as you have metalcraft. There is an entire genre of decks built around his mechanic.
2. Myr Welder Allows you to exile an artifact in any graveyard to "steal" it's activated abilities. I have performed SO many different combos with this card as the Crux.
3. Candelabra of Tawnos Instant infinite mana with any Dual-Land. Turn one genesis wave for 40? Yes please.

Contract from Below by far. Just read the card. There is nothing better.

@metalmagic

"4. No Ante cards. E.G Contract from Below, Jeweled Bird."

Trying to avoid ante cards because its illegal in pretty much all formats.

Well, I should read, but tl;dr is so much easier. After that, I will say... 1. Mana Drain, and 2. The Tabernacle at Pendrell Vale.

I also guess for my 3rd vote, after thinking about it, Bob should be included. Dark Confidant

Bob rings cowbells!

1. Jace, the Mind Sculptor....i mean have you seen his abilities?
2. Time Walk WTF pay two mana and take another turn????
3. Hmm... I dont know what to put... well i really dislike Force of Will so ill say that.

Dude, Ancestral Recall is arguably better than both of those, probably is the best card ever printed.

Since broken stuff like Jace and other format staples have been covered I'd like to nominate:

1) Golgari Grave-Troll. King of dredge, no questions.

2) Dread Return. Again, dredge staple, enables manaless decks.

3) Yawgmoth's Will. Shouldn't need an introduction. Powers out silly combos (twice) all day long.