I found Oak's to be better in any deck not running Solrock. And even then, I tend to prefer TV Reporter.
It depends on what deck. In Fire TRUK, Blissey or T2 Banette, Felicity's. In G&G or any other deck that dosen't like things in the discard, POV is the best. TVR can be used instead of Felicity's, but overall, 4 cards is better then 3. So yeah.
if you really want the 4 just play adventurer.