Your choice at end-user pt of view
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CRW is a good choice in terms of Application integration. It has server option and ease to deploy to clients. End user using Access in general need more skill so it is recommended for casual users. CRW can do web reporting but even MS Access can do web reporting, it still need a client license. (i.e. it is not a choice for internet, but should be fair enough for intranet)
At tech side
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the reporting feature for Access is not so powerful as CRW. CRW is a always focus on that but Microsoft do not.
The only strong point in MS Access is that you can build a VBA function to be used in the Query just like the new SQL 2000 functions and stored procedure of Oracle and Informix.
However, these VBA functions cannot be accessible outside the MS Access Application. (up to Access 2000. I am not whether it can be done in Access XP or not)