Hilton Corp specific:

1) hhonors.com makes you log on EVERY time you want to access your account. You make a ressie and wish to make another = please log in to do that. Would it be so hard to keep you logged in for more than 2 page clicks?!?

2) See number 1.

3) See number 2.

I tend to agree with the second poster. A lot of my Hilton pet peeves are with specific properties and are not representative of the company in general. In would be unfair to assign those pet peeves to Hilton Corp when the overwhelming majority of properties don't exhibit the offensive behavior.

If you are looking for specific pet peeves for specific properties there are pages upon pages of threads for your enjoyment.