It's all preference... Depending on the layout of your room, what equipment you have, what applies to your skill set... you know... it's just what works for you.
I transplant into 3-5 gallon pots of coco and I love the Oasis Cubes. $10US gets 50 cubes. It is impossible to overwater and really easy to keep moist.
I think if all Hydro stores started giving out samples they would sell like crazy. I think most people just don't know about them.
Don't try to keep them in a nice sheet or anything... just break them off into individual squares and use. simple.
Give them a try and I bet you will convert. Use the Brown 1 1/2 cubes. 50 per sheet.