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There will always be people on both sides of the fence and designs vary as well. But in the Stock classes, most small block racers do not use a tray. Not sure about big blocks, but they are somewhat different with "skirted" blocks.

Personally, I use a double-sided scraper. I always felt that an OEM style tray can actually trap too much oil. For as long as I remember, I always heard that the "windows" in the trays need to be opened up. Basically bending open the flaps more for drainage. I believe screens are better than trays because of the drainage area, but scrapers actually "scrape" the oil from around the crank to keep it from staying wrapped around it. A properly designed scraper and tray/screen can offer the most oil control. But it gets complicated and expensive.

More info on scrapers here:

Crank scrapers

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Look at the environment changes from when a windage tray was designed to what we want to use them in.
Loose clearances add a lot of oil flow, rpm is much higher than stock creating a storm in the crank case that probably doubles the windage in the crank case at the minimum and goes through the roof on a max stroked, tightly confined space like a low deck stroker, which is also seeing the huge increase in piston displacement of air in the crank case.
My own experiences have shown that a b motor 499 doesn't like a screen/dragster pan at all, a side bucket pan with a big kickout helped a lot and reduced the tremendous amount of oil being forced out through the vacuum pump or breathers, and that a scraper combined with the side bucket pan and screen not only kept the oil out of the puke tank of the vacuum pump but stopped the problem I had with losing oil pressure when braking hard. So each increase in windage (rpm, stroke)and oil volume (big bearing clearances) adds to the problem.