The other ones don't always follow instructions given to them and Kreacher is not a free Elf so it is difficult for him to be loyal to one person, ie his loyalty belongs to whoever owns him as he's magically forced to do whatever his current owner orders him to.

Can you imagine Bellatrix joining the OoTP?

Snap loyal!? He doubble crossed Voldemort! Now Bellatrix; she spent 15 years in Azkaban for Voldemort and never dreamed of betraying him. She died for him.

The only touchable loyalty
And if I could pick another one I would've picked Kreacher

I agree with zanhar1.

Severus was not loyal to Lord Voldemort, but he was to Dumbledore and above all, he was faithful, loyal and steadfast as far as his love for Lily - a woman dead long ago - was concerned, despite its being unrequited. If this isn't loyalty, I don't know then what qualifies for it.

Like I say : Severus was a Slytherin that worked like a Ravenclaw (with intelligence), loved like a Hufflepuff (with utmost loyalty) and died like a Gryffindor (with absolute courage).

I'm surprised that Dobby was not mentioned in the list. He was a free elf, free to decide where his loyalties should lie after all.

In my opinion Dobby is not loyal either, he left his masters.

I appreciate Sbape and Dobby's betraying of the evil side, it's not a bad thing. But if they betrayed someone, no matter what side, they aren't very loyal.

Bella

I agree with LadyNottingham he lived and died for Lily, loyal to the order and a servant to 2 men

totally