page size for tablespaces to create tables!!!!!

Good afternoon,
I have several tables 150 and 300 million records and nose to assign page size tablespaces where I will create the tables and then do the load (eg 4K, 8K, 16K or 32K) my system is a decision support (not transactional)

I have AIX 5.3 and DB2 V8.

thank you very much and best regards.