#5 is the only one of your I could see as a option. I like the horizontal nature of the design. But I feel like the HHi design part has been used in my previous logo design.
ou... I don't see your old logo... yeah, your old logo little bit old skool... on my no.5 I try to make it a pro and simple.... how about my entry no.11? It's a creative logo... it will stand forever... and people will easy to remember because of the unique logo.