I think they're both great. I'd say they're both nice enough to deserve a color premium. I'd pay a much bigger color premium for the 42S though.
War Nickels are tough to judge for artificial toning. To my knowledge, it was the only time that alloy was used by the mint and it resulted in some really crazing toning across the board. I like the look of the 42-S. It is mostly bright gold with some intermingled orange and patchy violet with what looks like incredible luster. Nothing immediately strikes me as AT, but it is an unusual toning pattern with an unusual progression which would make it in the more questionable range of market acceptable. I have seen that violet patchy pattern on a war nickel before. Given the overall eye appeal and quality of the coin, I would pay a premium price for this coin. I would estimate value about $100-$150. The 45-S on the other hand is a different story. The toning is not only less attractive, it is also more questionable IMO. I would not pay a premium for this coin. In fact, I would not even consider purchasing that coin at any price. But remember, I'm a Jefferson Nickel snob. To me, buying toned war nickels is the same as buying toned Morgan Dollars. There are enough available that you don't need to sacrifice quality, you can afford to be a little picky. Personally, I like to see mine in MS67 holders. I wonder if I have to make the qualifier that despite my last comment, I still don't consider rainbow toned Jefferson Nickels "common!"
The TPGs are better to judge than I, so I don't suspect AT. My gut doesn't tell me that either. The second one is a little less nice but interesting still.
