If you seriously want to run with the name APEX then I would do an extensive trademark search and make sure that no one has the rights to the mark. http://tess2.uspto.gov/bin/gate.exe?f=searchss&state=4803gq0w7.1.1I've seen all these links. There all no name brands who don't sell shit under the name "Apex". As of now I'm one of them, but my hopes are to make a product great enough to become a house hold name in streetwear. I'm going to need a ton of work obviouslyYou want a logo for Apex? How about http://apex-athletic-apparel.myshopify.com/updated logo
If it's clear and you're serious then you can consider applying for the trademark and forming a business. It's not your logo, but the products that it stands for that will attract your customers. As far as the design I would take into consideration the printing process for whatever you plan to put your logo on. Those fading shapes might look cool on a computer screen but they may be a lot harder to print onto a shirt than you think. The best logos are simple and the name and lettering for APEX definitely fits into that category. But again, it's all about the clothes. Good products will sell regardless of the name. Your focus right now should be on designing really cool shit that you think people would spend their hard earned money on. It needs to be much more than a shirt that just says APEX, no matter how cool the logo is.