Each home replacement has different aspects and features. You can always try each. There's an app called Home Switcher (free) which allows you to change between them (or change the default for the Home button) quite easily. I've used Panda, GDE, Home++, SweetrHome and DxTop. The one I'm using now is Helix (Launcher 2). Some are free and others cost a few dollars.
One big thing to remember....you have a 24-hour window to purchase an app and then uninstall it for a full refund. That way if you don't like something, you're not out any money.