Edo Itachi. Don't even stop to think about it. Just go for edo itachi straight away.

Depends on what do you need, what kind of lineup you're using.

im using 6p naruto full buff team, sometimes minato(bond) team

Oh yeah, and the bracket that you're in. If you're confident that you will move first most of the time, then I think susanoo kakashi is a good choice. Your lineup also runs really well with susanoo kakashi. But, if you face a lot of edo hiruzen or agk, or if you want to play safe, then it's edo itachi for you.

In short, susanoo kakashi makes you more destructive, but edo itachi makes you more stable. It's just my opinion, in the end it's up to you.

Okay let's look at it this way: With 6p naruto and sus kakashi lineup, you'll be basically unstoppable given that you are faster. BUT, susanoo kakashi is a one trick ninja. His only redeeming quality is his passive; which to me is kind of not worth his price. Edo itachi, on the other hand, is an overall great support ninja with both c.c. and anti-c.c. qualities, ability to cancel buffs, and relatively safe from being chased as well as allowing you to survive most round 1 blitzes. I may seem biased but I would highly recommend you to get edo itachi over susanoo kakashi. You can still stomp people with 6p naruto even without susanoo kakashi.

But well in the end it's still up to you. Consider your options carefully

not only is his passive, he has a good cc mystery that cause immobile to selected unit, he has high chance to dodge chance, and his immobile chase is fairly good

edo itachi does all those things and provides more support and auxiliary. Susanoo kakashi's mystery is good but it is described as and meant as an offensive skill but acts and feels more like a support skill since the damage is almost non-existent. Don't get me wrong, susanoo kakashi is good but I would really recommend just waiting for his price to become lower or for an event that offers him for a much lower price since there are other ninjas that outweigh him in terms of value and use.

Both Ninjas are serving their purpose.

Kkssn with teams like jonin minato and 5k madara when you are faster, it will be very unlikely to lose if you have kkssn as a support move 4. since you will double chase with madara draining 40 points of chakra and interrupting whoever triggering a mystery in the opponent team.

Edo itachi is good against high damage teams but he wont give you advantage same like kakashi ssn does in overall.

What i mean is if you are stronger than most, itachi wont give you much as kakashi will

if you are weaker than average then itachi will give better results than kakashi.

Why do people say he is 20k coupons? How do you obtain edo itachi for 20k coupons?

It doesn't mean people say he is 20k coupons they obtain it for 20k coupons .. Logic ..

About the topic, lets set aside the character bias opinions, Steve Carry is right with his explanation .. It is tactical and strategical formations when it comes to utilizing this ninjas .. Specially during Space-Time Battles .. My answer is based on my experience also, from the matches i got in 3v3, DB and Matsuri ..

Also, without speed, you cannot bait your enemy using Edo Itachi, just like the image above where he waited my main to cast skill before using his Edo Itachi, the result .. I got him Masked Man-ed and he retreats ..

I'd get both, but I'm a collector, so yeah. Edo Itachi would overall be better. Unless you're running into someone who is simply above you in power, initiative and spending like in the picture above, he should help you deal with a lot of nasty teams. Then again, you'd be fighting fire with fire, risking to get burned yourself :)

oh hi Kei

he is right now in lucky star wheel. same cost as naruto six paths (37 stars per fragment). so costs 20-22k coupons.

that one is a good example of a guy that has no idea about how to correctly use itachi.

At least it isn't a guy who doesn't understand the reflect debuff in general. Happens way to often with shisui/itachi susanoo where I just laugh at them every time it happens.