Assani,
[ QUOTE ]
Which baseball players(if any) have very basic fundamental errors in their swings yet can still succeed and what is it about them that lets them succeed despite this?
[/ QUOTE ]
There is a perfect answer for you, actually: Barry Bonds. He has a severe hitch in his swing (just like Hunter Pence's poor swing above, where he drops his hands before loading his back leg and bat) but is quite obviously one of the best hitters of all time.
See if you can spot it:
EDIT: He succeeds in spite of this flaw because he has ungodly plate discipline, amongst other traits.
[ QUOTE ]
If you had to pick one baseball player that had a textbook swing who would it be?
[/ QUOTE ]
Joe Mauer or Albert Pujols. Ken Griffey Jr. is a good choice as well and embodies the classic power stroke.
Mauer just has a sweet smooth line-drive-heavy swing that generates good backspin. It is simple, repeatable, and effective. It is for these reasons I use him as the template for my students.
[ QUOTE ]
Of the good qualities which ones are more likely to produce power and which ones are more likely to produce average. Conversely with the common mistakes which ones will hinder average and which will hinder power? Or is this being too simplistic of a viewpoint?
[/ QUOTE ]
While it is simplistic, there are strong correlations between certain traits that scouts look for. The ability to consistently center the ball will lead to higher batting averages, the ability to put backspin/loft on the ball will increase fly ball rates and hopefully power if the swing is good, and plate discipline will increase on-base percentage through walks and should also increase BOTH average or power (since you are hitting only pitcher mistakes or tough pitches with 2 strikes only).
EDIT: Pretty much all swing flaws will hinder both power and average equally, though poor weight transfer will hurt power more than average.
[ QUOTE ]
I swear I really don't mean to imply anything about steroid by this last question.....how much does overall strength in your opinion help a hitter hit for power(or average I guess since "average" by your definition means hitting the ball hard consistently)?
[/ QUOTE ]
It all comes down to the simple force formula: Force = Mass * Acceleration. Swing mechanics are responsible for the vast majority of the ability to deliver the barrel of the bat at high speeds, and it has been shown that heavier bats only produce greater distance if the velocity is kept at a high rate; obviously mass of the bat and bat speed are inversely correlated and as such heavier equipment isn't necessarily better.
I get that out of the way because the answer to your question is "it depends." Core strength is the majority of what is important in swinging a baseball bat (or a golf club, or punching someone) and it can be developed by traditional strength training. The key factor is increasing bat speed - the faster we swing the bat, the more kinetic energy we put into the ball at the point of contact. We need only look to the 1988-1991 Oakland Athletics and their revolutionary training techniques, giving way to sluggers like McGwire and Canseco, to show that strength training does work.
Strength training works in a few ways:
1) Greater lean body mass allows for faster bat speed and thusly more power in our swing.
2) Greater lean body mass as developed by compound lifts (squats, deadlifts, cleans, etc) will increase stabilizer muscles and help the hitter to "stay connected" (no bat drag, ability to maintain a perfect swing for longer periods of time) in the swing, leading to less mishits.
3) Faster bat speed not only accounts for more power, but it allows the hitter to wait on a pitch a fraction of a second longer, giving him a big advantage.