Are these two blankets actually different?

No. Both are the same Exclusivo Mezcla microfiber flannel fleece throw in 50" x 70" and hot pink. The fabric, size and care instructions match; only the listing and the number of ratings differ.

Which one has better owner feedback?

Both average 4.6 stars, but Product B has about 1,900 ratings versus 552 for Product A. That larger sample makes B's score more reliable.

Which is warmer for winter?

Neither is a heavy winter blanket. Both are lightweight fleece, good as an extra layer on a couch or bed. For real cold, look for a heavier plush or sherpa throw.

Will either one shed or fade in the wash?

Both are described as machine washable and dryable with no fading, shedding or shrinkage. Wash cold and tumble low to keep the fleece soft.

Is the 50" x 70" size big enough for two people?

It covers one adult comfortably and drapes over a couch arm. Two people sharing it will find it snug; size up if you want full coverage.

Is it worth stepping up to a heavier throw?

Only if you want warmth rather than decoration. These are thin, soft throws for lounging and styling; a heavier blanket is better for cold bedrooms.

Exclusivo Mezcla Flannel Fleece Throw vs Exclusivo Mezcla Flannel Fleece Throw

These are the same Exclusivo Mezcla flannel fleece throw in the same 50" x 70" size and hot pink color, so the fabric, weight and care instructions match. The main difference is the listing itself: Product B has far more owner feedback, with over 1,900 ratings against 552 for Product A, both at 4.6 stars. Buy whichever listing shows the color and size you want; there is no real quality gap to weigh.

Choose the Exclusivo Mezcla Velvet Plush Throw if its listing is the one showing the exact hot pink shade and 50" x 70" size you need.
Choose the Exclusivo Mezcla Large Flannel Fleece Throw if you want the version with the larger body of owner ratings behind it.

Prices

Exclusivo Mezcla Flannel Fleece Throw: $14.99 at Walmart (last seen Nov 10)