I had a little Black and Decker corded mower. It worked relatively well, and the handle could be switched from side to side, which helped a lot in tight spaces. But when I started planting rose bushes and then a tree in the middle of the rather small front yard, the cord became unmanageable. I sold it on Craigslist and got a gas MTD with a B&S flat head motor. That was an OK mower, but when I saw a stainless deck model with the Honda mower, I got that one instead. It works better - quieter, easier to start, and more efficient (uses less gas).
An electric mower might well be able to cut through thick stuff better than a gas one, because electric motors develop full torque immediately. But one also risks burning up the windings on the motor if it stalls too much.
I don't mind using gas yard equipment. In addition to the mower, I have a gas hedge trimmer (Echo), gas string trimmer (4 stroke Ryobi), gas rear tine tiller (MTD), gas chipper shredder (Patriot with Tecumsah motor), and gas chainsaw (Poulan). The string trimmer takes attachments - I have pole pruner saw, hedge trimmer, mini tiller, and edger attachments for it. Very useful. The string trimmer, hedge trimmer, and chainsaw, all replaced electric versions, which just couldn't keep up with the tasks.