Hi Anthony - welcome aboard!
I'm thinking of choosing the Full Body workout but I'm not sure if I should chose 3 days/week or every other day? What would you folks recommend?
I would do the 3x a week routine first. Also, during the first couple of weeks, your focus should be on learning the exercises, not how much weight that you can lift. Once you're familiar with the exercises, you can designate heavy, light and moderate training days. On your heavy day you would squat, say, 100 lbs. On your next workout, you would squat 60 (light day) and the next you would squat 80 (moderate day). The weights that I gave are hypothetical, but you get the idea. The next week, you can add a small amount of weight to your exercises
And one other thing (sorry for all the newb questions), after I chose the workout type (Alternating Upper/Lower) do I do each of those exercises listed under it every time I work out, or do I break them up throughout the week?
At first, do them in a group and see how that goes. As you progress with your lifting, you can get into all kinds of variations.
Be sure to keep a training diary, so you can look back and see what works for you and what doesn't.