Baseball caps and baseball style uniforms shouldn’t be changed. Some team several years ago - I forget who - had as a promotion “back to the future” uniform day and what they wore were the most hideous things I’ve ever seen, and I’ve seen Padres old yellow unis so I so know ugly when I see it. And while we are on the subject, caps should only have a logo on the front above the brim. World Series patches belong on uniform shirts, not on caps! I hate those new Yankee cap that have some unreadable logo on the side.
The Hall of Fame should remain in Cooperstown for all time, and all fans must make a pilgrimage there at least once.
To kick the hornet’s nest: Pete Rose and Joe Jackson should remain banned.
Put me down for going back to 2 divisions per league with no wild cards. Bring back the pennant race, I say!
Hot dogs and soda pop prices in the ballpark should be brought down signifigantly. As my buddy Paul says, anyplace that charges $5.00 for a coke should have lap dancing available on site. 
Realignment should result in the following divisions:
AL East: NY Yankees, Baltimore, Tampa Bay, Cleveland, Toronto, Boston, Detroit
AL West: Chicago White Sox, Minnesota, Kansas City, Texas, Oakland, Seattle, Anaheim
NL East: NY Mets, Philadelphia, Pittsburgh, Cincinnati, Atlanta, Montreal (soon to be Washington DC ), Florida, Houston
NL West: Los Angeles, San Francisco, San Diego, Arizona, Colorado, Milwaukee, Chicago Cubs, St. Louis.