Just like in my Battle of the Matte Bronzers, one of these products is actually a deluxe sample. I got the Tarte Park Avenue Princess in a Sephora 500 point Beauty Insider Reward set a while ago.
Size: Tarte's Park Avenue Princess is .32 oz, while Betty-Lou Manizer is .3 oz. Not much difference in size.
Product: Next to each other, they look very similar. Park Avenue Princess looks like it would be slightly darker than Betty-Lou Manizer. Both are very soft, smooth powders.
Color: Betty-Lou Manizer is more coppery golden. Sephora's website describes Park Avenue Princess as "highly pearled light yellow gold." With a heavy swatch, Park Avenue Princess looks more wearable at a bronzer, while Betty-Lou Manizer looks more like an eyeshadow.
Availability: I always have to mention this with theBalm products, because the availability is limited. Betty-Lou Manizer is available on theBalm's website, and it is one of the few theBalm cosmetics products that is still available on Sephora's website.
Cost: The full size Park Avenue Princess is $29 at Sephora. Betty-Lou Manizer is $24 on theBalm's website or on Sephora's website. Betty-Lou Manizer is also included in Fake It Don't Bake It kit at Marshall's for $10, if you can still find it.
Overall: I wouldn't rebuy Betty-Lou Manizer, because it isn't very wearable for me. Although I love the packaging, I don't think i would spend $29 on the Tarte shimmer bronzer, since I love my Milani Baked Bronzers so much.