I have three Upper Deck Goudey Luke Hochevar cards.
I really like the style of these cards.
I also like that the parallels in this product are differentiated on the backs of the cards rather than the front. This forces me to turn the cards over and take note of the backs (I'm one of those guys who rarely looks at the backs of cards. It's one of my quirks).
I have no idea how many different color combinations there are, but obviously there are at least three. I think I like the blue one the best. It stands out well against the greyish background and seeing the Royals logo in red and green is just plain weird.