I'm not exactly clear as to why you are so against Kenny when his track record is superb, yet you have always been so for keeping Roy on when he is clearly out of his depth.
I agree that his track record is outstanding. What I question is whether he will simply pick up where he left off. If you look at the statistics, managers who do a second spell at a club they had previous success with rarely do anywhere near as well the second time around. The Premier League tests even the best managers, and Dalglish will have the odds stacked well against him.
For the record, I am definitely not convinced that Hodgson is a long-term solution. He's been given a chance, under difficult circumstances, and the results are very poor. But I am strongly against hiring and firing managers willy-nilly, which is why I think Hodgson should be allowed to finish the season. Once the season is over, the club can change managers and set about strengthening the squad.
I know I'm in the minority of Liverpool fans (probably the small minority) in supporting Hodgson at least in the short term. Also, I wasn't a Liverpool supporter yet at the time Dalglish was in the technical area, and I'm American to boot - so I'm very aware that quite a few Liverpool fans probably would not give me the time of day (or worse). But my opinion, for as little as it's worth, is that Dalglish is a rallying figure that the fans love, and I can understand why they want him. He was a great manager and a winner, and to fans he represents Liverpool as they want the club to be - successful, feared by opponents, entertaining. None of those things guarantee that he will be able to win games with the current squad - many (most?) of whom do not look to Dalglish the way the supporters do.
But in a way I agree with you. If they DO sack Hodgson, and they can't get a top manager in immediately, perhaps they should bring in Dalglish. Because if they don't bring him back, fans will always be calling for him and every single Liverpool manager from now till who-knows-when will be living in Dalglish's shadow in the Kop's eyes. Perhaps the owners really have no option. Maybe they have to bring Dalglish in, if they hope to stay on good terms with the Kop. If he succeeds, everyone will be happy. If he fails, the fans will at least have gotten what they want.