Best Engine Bearing brand ??

I have always heard that it is best to run tri-metal (alloys containing: lead-tin-zinc or copper-tin-zinc) bearing on older steel cranks,, as steel cranks and tri-metal bearings were developed together, Clevite 77 (Mahle) is a great tri-metal bearing
And on cast cranks,, bi-metal (alloys containing aluminum-nickel or aluminum-copper) bearings are the best choice, King is a good choice for bi-metal bearings. Mahle also does bi-metal but probably not under the Clevite 77 brand.

Whether the bearings are from King, Mahle or Federal Mogul, for an application like yours with a steel crank, I would want a tri-metal bearing, as that what was in use when that crank was engineered.