I want 16GB of RAM in my new computer. I, at some point, want to upgrade it to 32GB so I was going to go with 2X8 but I've always seen people use 4X4. I know it's still 16GB, and this may be a stupid question, but is there a difference or advantage to doing 4X4 rather than 2X8? I know 32GB is a little bit of overkill but wouldn't it be good to have? Also, I was going with Corsair Vengeance low profile, but would Patriot or G. Skills be a better buy?