#44 and #47 are very interesting. We don't prefer #48, because the "H" is a bit too abstract. Thanks for your submission. If you have a chance, take a look at the old logo we uploaded to the site (red box with a white "G"). We like how the white space bleeds out of the box. this design looks good on our letterhead. We would be interested to see some designs that play off of this concept. Thanks.