Question on grading cards

I started collecting BB cards back in 1973 and continued until about 1990. Recently my wife and I moved and I got my cards out of storage and was bitten by the collecting bug again.
I have been away from collecting for so long I have a lot of catching up to do. The question I have is on the different grading services. In the coin collecting arena PCGS, NGC and ANACS are considered by most to be the most reputable.
What about Baseball cards? I assume PSA is one of the more reputable grading services. Who else is good and who should I avoid?
Thank you in advance.
P.S. By the way I was amazed at how much the card values in some cases had decreased in value compared to the 1980's.
I have been away from collecting for so long I have a lot of catching up to do. The question I have is on the different grading services. In the coin collecting arena PCGS, NGC and ANACS are considered by most to be the most reputable.
What about Baseball cards? I assume PSA is one of the more reputable grading services. Who else is good and who should I avoid?
Thank you in advance.
P.S. By the way I was amazed at how much the card values in some cases had decreased in value compared to the 1980's.

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Comments
Any 89 Fleer Bill Ripkens in there?
The card values-yeah they printed just a few too many in late 80's eh?
Good Luck.