1937 Matte Proof-Like Set - PCGS, ICCS Or CCCS?

It really depends on what you are trying to achieve, and of course the value of the coins in question. I too would recommend ICCS for this particular set if you feel the need to send it to a TPG, as long as the coins are in the 63-64 range.

There are some sets though that are well worth sending to PCGS for grading. Typically for me they would be higher value sets, like older specimens or PL's in higher grades. I would never send anything to NGC from Canada.

Even with this set, if the dollar was determined to be 65-66 it could be worth sending to PCGS. Registry set people would be interested in it. Where it would make the most sense is if you planned on sending it to somewhere like Heritage some day to sell it. PCGS would do way better there than ICCS.

The other advantage of PCGS is if you want it in a hard slab rather than a soft flip if you plan on keeping it for a long time. Those big dollars in particular don't do that well in ICCS flips. That only makes sense if they have a decent amount of value though.

If the gold $20 happens to be really high grade, particularly if it has heavy cameo, it could have some decent value beyond bullion. The penny appears to have a decent amount of cameo, so again depending on grade it could be worth doing something with. The others, unless they are incredibly high grade, aren't likely to be worth sending anywhere. That set is very common, at least for the 1c-$1 portion. Even the gold $20 are easy to come by from the Proof sets.