In California we are using BBCOR's and a few of the "wavered" bats by the NHSF
http://www.nfhs.org/content.aspx?id=4155We see a whole array of bats being used; some BBCOR's of various makes, and probably 50-60% CF4's, and a handful of wood bats. My son's team is using CF4's and a few BBCOR's and frankly I don't think the CF4's are much different than the BBCOR's which is probably why they were waived.
We have played 4 games and 3 home runs have been hit which I don't think is any different from last year. A squared up ball is going to go out regardless of the bat used. Two of the HR's were with CF4's and one with wood.
The major difference I have seen are that outfielders are playing shallower and are going back on balls. Hits in the gap that used to be doubles are now singles, and some balls in the gap hang up longer and allow OF’ers to get to them. A good OF with makes a huge difference as well as a good fielding infield. We have had two games end with 3-2 scores, and one 2-2, so scoring is down, but the tension late in the game is higher so they are more fun to watch IMO. Pitchers are most definitely pitching inside more this year.
I think it is too early to decide which BBCOR’s are the best, and I expect that each manufacturer will make improvements on their models during the year. I have heard that the new Louisville bats are slightly better than some of the earlier BBCOR’s but that is just hearsay. We decided early on to purchase some CF4’s for the team so we bought two used CF4’s off of Ebay. I doubt you will find anymore there, but I would check it out. I have found over the years that I can get the best deal on bats off of ebay and I always purchase them for dealers with receipts in case they broke.
Our team has a bunch of Sr’s so we did not need bats to last beyond this year so we went the used team bats - CF4 route, but if I had a younger player I would still wait and see if I could get the team (or a group of parents) to purchase a few bats to use for the season and then buy him a bat late this year for next season. One parent mentioned at the last game that it reminded him of when he played LL and that players were not swinging their own bat and that the on deck guy picked up the bat from the kid hitting in front of him. I am not sure if this really answered your question, hope it helped.