Is the best practice to use database views or view objects?

Hi everyone,
If the option is available, is it preferable consolidate as much data as possible into a database view instead of doing this through view view objects? It seems the answer would be yes, but I would like to hear the pros and cons related to performance, etc.
While I do not mind a detailed discussion, practical "rule-of-thumb" advice is what I am after; I am a newbie that needs general guidelines - not theories.
James

Performance is the main driver behind the question because I am wondering if it is faster to send a single large record set across a network or several small ones and "assemble" them at the client level.
Probably is better to send one large record, but you will need to take in account time required to create this one large record in db(maybe oracle object types, or arrays of oracle object types).
Check this for some VO performance advices: Advanced View Object Techniques (especially property: "In Batches Of" which defines number of roundtrips between app server and db)
As far as creating an updatable database view, I know there are minor tricks that are required to make that happen from a strictly SQL standpoint. But, I am curious the best way to go in JDeveloper.
Some solutions:
Using Updatable Views with ADF | Real World ADF
Andrejus Baranovskis's Blog: How to Update Data from DB View using ADF BC DoDML Method
Dario

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