I have some pretty recent experience with this...
If you're a serious college baseball prospect, play summer ball. That's the bottom line.
I am a senior D-I prospect in both baseball and football, but a much better baseball player. Yet, this past summer, heading into my senior year, my football coach encouraged me to attend college camps, ect. to help my football exposure. Well, this ended up killing me baseball-wise. I thought because I had a monster junior season for baseball, I didn't have to play over the summer, and I could work toward getting offers for both sports. Because of this, I lost a TON of potential exposure. Not only that, I also ended up missing half of this baseball season because of a foot injury I suffered in the Palm Beach County football All-Star game, which cost me even MORE much needed exposure. Now I'm sitting here, a potential major D-I and pro prospect, with 1/10th the interest most believe I should have had. So, my advice would be to stick with baseball if you truly have the ability to play at the next level. If you think you have as much, if nor more of a chance to play football at the next level, then you have a personal decision you have to make.