Since I'm no video game expert, I'll leave the review of MVP Baseball 2004 to IGN.com:

Overall rating: 9.0

Presentation: 8.0
There's plenty of Hall of Famers, classic unis and stadiums, AAA and AA teams that matter, and a great Dynasty Mode, all of which offsets a lack of Home Run panache and deep stat tracking.

Graphics: 8.0
Three-quarters of this game is outstanding. Great character models, nice stadiums, unbelievable animations. The other quarter is bad textures and poor face scans.

Sound: 8.0
Decent play-by-play has a lot of variety, even if it's occasionally wrong. The crowds make this one come alive with multi-tiered audio to better gauge the excitement. Great crowd chants.

Gameplay: 9.0
Never has a baseball game made fielding as realistic. Total Control is a work of art and the Dynasty Mode additions make it one of the best ever, but questionable AI hamstrings a perfect score.

Lasting Appeal: 10.0
Finally a baseball game that will truly last an entire season. AA, AAA, and a Dynasty Mode that makes you accountable for personnel. Tack on quality extra modes and summer never has to end.