Trump Tower sign irritates me because of where it's located on the building, and because the font is just so tacky. I was also super pissed when Chase put a sign on the First National Bank of Chicago building. It just wrong for the design of that building, which should just be unadorned. The Loew's sign doesn't bother me because I think the font is nice and the way it sits on the building. Hate the Nuveen sign on 333 W. Wacker.
I could go on and on. Though I generally dislike signs on buildings because it seems so 2nd or 3rd tier city, if the design and placement are well thought out and act as an adornment to the building, I give them a pass.
Oh, and I like big effing neon giants from the early 20th century -
https://www.flickr.com/photos/rock_c...ku/43501085501