The more universal parts and less complex, the more reliable and easy to maintain they’ll be. That will limit you to the cheaper and least efficient models though. Stay away from the spine-fine Trane and American Standard units, they are harder to clean and fail more often than traditional fins.

Models rated for use near the sea coast are going to be the most corrosion resistant.

Also, the installation is more important than the equipment brand. The best equipment installed by a hack will be terrible, average equipment installed by a seasoned pro will be great.