Best lakes in Texas for families?

Me and my family (I am not an only child but my brother && sister are off to college, so it's just me with my parents) are looking for a nice lake && lake house to enjoy in the summer and fall times. We are going to do things like swim, fish, go motor boating, tubing, water skiing, camp outside,, ect. (like other things you might do at a lake). In the summer we might stay a few weeks (perhaps 1 or 2), but during the school year probably every other weekend, && my parents said I could probably invite 1 or 2 friends during the summer && school year. Our maximum staying time in the summer is 1 week (at a time, not the whole summer) , and school year about 3 days (at a time && on weekends). What do you think ?