I understand you come in peace and for that of course, you are welcome here. However I'm sure you'll understand you can't expect to come on a Liverpool fansite and effectively denigrate the name of one of clubs' icons without recourse.
In answer to your post, Paisley was Liverpool's most successful manager. For me anyway because he's my favourite manager and I'll defend him to the end of days as a hero. And Dalglish is to many many fans, and the manner in which he played, managed, and dealt with Hillsborough and the media and the life and spirit he brought back into this club after the cancer of Gilette and Hicks' time is nothing short of brilliant and for that his legacy remains untouched.
Like any manager, they will do good and bad during their time, but please realise that Dalglish is one of the brightest stars in Liverpool's firmanent and no-one will dim that.