I don't have any past experience with HD, HF or Sears planers.
I do have a 13" Grizzly floor model planer that I like, but new its about twice the cost of the tabletop planers. But before you make a choice on what to buy, make sure you investigate replacement blades and their costs. Some planers use 'disposable' blades which aren't meant to be sharpened. That is OK if that is what you want, but explore those choices/costs before you buy.
ultracrepidarian >> noting or pertaining to a person who criticizes, judges, or gives advice outside of his expertise