MSI and Gigabyte seem to have a handle on what makes a good April Fools joke. Those are some clearly ridiculous, yet marketable, fake products.
NZXT and Silverstone seem confused. They teased what look like legit products that people would really and eagerly buy. NZXT's GPU looks clean, sleek, and in a color that's always hard to find. No RBG gamer crap -- just a solid design. Love it! Silverstone could be on to something marketable with retro-looking cases that support modern hardware.
Asus though... what were they thinking? Why launch a real product on April Fools Day? The design and specs look good. Where's the fool here? Maybe it's in the price, reliability, or battery life. Asus does have a knack for pricing themselves out of the market.