Few issues with this.
For instance, which HK you like is going to come down to personal taste, with me preferring snarky HK my miles and miles. Same with Canderous and Mandalore. Unless we're not counting the Restored Content Mod, in which I'd agree with you on that one.
Also, I don't think trying to find direct parallels is the best way to go about this, outside of returning characters, because often times these analogues don't line up well. Jolee and Visas, for instance, and, to a lesser extent, Carth and Atton. Better is to either compare all characters to each other, or simply look at the totality of one game's companions, determine your feelings for the group, and compare it to your feelings of the party from the other game.