Robb was a tactical genius and a strategic idiot.
There are multiple proverbs to cover this statement... take your pick.
The apple does not fall far from the tree.
Can't see the forest for the trees.
Like father, like son.
Common sense ain't common.
Ability can take you to the top, but character keeps you there.
Don't bite the hand that feeds you.
TK, you think Victarion will stay with Dany? My feeling from AFFC was that Victarion was for Ironborn Independence. Even if he could join with Dany and be made Prince of the Iron Islands and Lord of the Riverlands, would he subject his people to this? I think Dany will be about as impressed with the prospect of Victarion's presence in her Small Council as Cersei was with Tyrion's.
I think Victarion will want an alliance with Dany that will ensure himself as king of an independent nation. And just like Stannis, Dany will refuse to divide her kingdom and inherit less than her full birthright. So Victarion will have to submit to Dany or slink back to Euron. I think it all boils down to how much does Victarion hate Euron.
Does Victarion hate Euron enough to forfeit Balon's plans and the Ironborn's Drowned God's given rights to live free and plunder? Victarion has already swallowed his pride enough to be civil to the man who seduced/raped his wife. I think Victarion will swallow even more pride by continuing to serve Euron by either attempting to steal a dragon, attempting to assassinate Dany, or taking his fleet back to Euron and continue his reaving ways.
Now Barristan, BFS as Egg calls him, is another topic altogether. Will he accept Tyrion? I think he'll remind Dany that Tyrion's brother slew her father, that Tyrion's father betrayed her family, that Tyrion's father's men murdered her aunt and niece and nephew, that Tyrion's father's money propped up the usurper's throne while forcing her into penury, that Tyrion's sister was the wife of the man who sent assassins after Viserys and Dany and Rhaego, that Tyrion's sister is the Queen Regent, and that Tyrion's nephew (twice over) is the current usurper.
BFS loathes the Kingslayer. He'll see the same taint in Tyrion. When Dany asks Tyrion "Why should I accept you?", Tyrion must reply "Because I slew Tywin the Betrayer." Then Barristan will name Tyrion a Kinslayer. Barristan is done with shades of gray and rationalizations... I think his world is now black and white. It is there that he finds meaning and purpose. Tyrion's shady past will be next to impossible to reconcile with Barristan's White Cloak.
But then again, Barristan has sworn to serve Dany, so he'll have to go with whatever she decides.
I think Quentyn in under orders to assist Dany in any way possible. The Martells are open to almost any coalition that supports the Targaryens and condemns the Lannisters. Quentyn will be for omitting Tyrion from Dany's alliance (he'll probably openly want Tyrion's head), but I think he'll go along with whatever Dany decides.
The Martells are pragmatic enough to know that the deaths of Tywin, Cersei, Jaime, Myrcella, Tommen, Kevan, Lancel, and Genna will finish any Lannister designs on the Iron Throne... IF Tyrion swears undying fealty to House Targaryen. Completely destroying House Lannister will weaken the Westerlands considerably so that House Tyrell and House Greyjoy will gain much power... and this is bad for Dorne.
Does anyone think that Tyrion will think that Dany resembles Tysha or Dany? Forget about hair and eye color... Might Tyrion think she resembles either of his former loves? Jorah sure did.