Originally Posted by
GoboLord
First of all, you brought up some very convincing arguments. However, I think you are focusing too much on Krenko's up-sides.
Here are some "downside" arguments (in-game situations):
* you put Krenko into play (instead of SGC) and you opponent has an removal spell immediately - i.e. before you get to tap activate Krenko. SGC would at least have left you with 3 tokens there
* you need to chump-block a Jitte-equipped creature. SGC does that better than Krenko. (Well, admittedly you can argue now that SGC is dead as soon as your opponent manages to put 2 counter on Jitte)
* other way round: you can attack for lethal damage...if only your opponent didn't have that pesky Jitte (or any other untapped Lifelink-creature). With SGC you can go all-in and use 2 mana to sacrifice the blocked creature to cancel the "whenever this creatures deals damage"-triggered ability. WIth Krenko you might have to wait 1 or 2 turns to get the same effect. But honestkly, 1-2 Turns are a lot in a format as fast as legacy.
* Krenko doesn't enable Turn 3 Kills as easily as SGC does
* your opponent attacks. You tap Vial to bring in SGC and chumpblock 2 of their creatures. Then you alpha-strike him on your next turn. Krenko doesn't do that. Remember how often we profit from such surprise-attacks ... SGC screws with their combat math really hard. Even if you DON'T have SGC in your hand, ticking up Vial at 5 can be a good bluff to keep you opp at bay.
I'm not entirely sure myself if the one or the other is better. However, I have a more practical approach to this issue: "Never change a winning team". As long as I'm unsure about Krenko vs. SGC and as long as SGC keeps performing well I see no reson to replace him. I'm not saying that SGC is strictly better than Krenko (that's debatable), but on the other hand, why should I cut a card that has already proven it's value? I mean we are probably talking about changing the decks win-% by 0,1% to 0,5% anyways. Sooo running the one or the other doesn't matter that much until someone brings up some REALLY good arguments for or against the one or the other. Keep in mind that neither creature is needed to win games, in the past tournament I even thought about cutting SGC entirely in favor of maxing out the creatures that do the job most of the time, like MWM and Piledriver (even Stingscourger) - simply because I didn't draw SGC too often lately.
//EDIT:
So far i have collected 381 recorded gamesin my analysis. I will present the results as soon as I have 400+ records. This might give provide another argument for either SGC or Krenko, or both. We'll see...