Do you guys play the PW that comes with your iron set, or do you use a different brand. Mine Mizuno MX-23 PW is all worn and I'm considering other options for replacement.

The standard MX-23 PW has 48deg loft. If you want to replace it have a look at the 47deg MPT-Series Black Nickel wedge from Mizuno. IMHO it's a good wedge although not the cheapest, 118Golf do them for about £85.00. You may find one cheaper if you shop around.
Brom.

I have got Cleveland TA1 irons and use Vokey wedges - PW, GW and SW.

So my answer is - "different" :-)