Which is better for a tall person or full couch coverage?

The Sunbeam. At 50x70 it is ten inches longer than the MaxKare, so it covers legs and feet better on a couch or bed.

Which gives more control over warmth?

The MaxKare. It has six heat levels and a timer you can set from one to five hours. The Sunbeam has four levels and a fixed four-hour shutoff.

Both are ETL certified and machine washable, and controller failure is the most common complaint on either. The Sunbeam's larger review base is thinner, so its higher rating is less proven over years of use.

Is the Sunbeam worth stepping up to?

Yes if length, brand trust, and the faux fur look matter to you. The MaxKare is the better pick if you want finer heat and timer control.

Can both be machine washed?

Yes. Detach the controller and cord on the MaxKare first. Wash both on a gentle cycle and air dry to protect the sherpa and faux fur.

Do either get hot enough to be uncomfortable?

Neither runs very hot at the top setting. Owners of both describe the low settings as only mildly warm, so the higher levels are the ones most people use.

MaxKare Electric Throw Blanket vs Sunbeam Heated Bubble Faux Fur Throw

The Sunbeam is the better throw for most people. It has a longer 50x70 size, a trusted heating brand, and a higher owner rating, though from far fewer reviews. The MaxKare offers six heat levels, a 1-5 hour timer, and a reversible flannel/sherpa build at a lower cost of entry. Owners of both praise the softness and even warmth; the main complaints are controllers that fail and heat that runs cool at the low settings.

Choose the MaxKare if you want more heat levels, a flexible 1-5 hour timer, and a reversible flannel-and-sherpa throw that is easy to machine wash.
Choose the Sunbeam if you want a longer throw, a well-known heated bedding brand, and a plush bubble faux fur look with a velvet reverse.

Prices

MaxKare Electric Throw Blanket: $29.99 at Walmart (checked today)