I agree with NotAfraid
Fritz 14, Houdini 4, or Komodo 8 ?

Use one of the cheaper Fritz versions and download the free Stockfish 5 into it. Stockfish 5 is as good as Komodo 8 and Houdini 4 in my opinion. I have Stockfish 5 and Komodo 8 and they often agree with each other. NotAfraid provided you with the Stockfish 5 link.
Houdini 4 works best with the $60.00 add on, new Syzygy tablebases.
Don't buy Syzygy tablebases when they're available for free. http://oics.olympuschess.com/tracker/index.php
i am using Stockfish 14122208 (development version), its a monster engine and much stronger than Komodo 8 or stockfish 5 or Houdini 4. its free and open source.
You mean the one at TCEC7 finals? That engine sucked. It was so buggy and incredibly inaccurate, with lots of miscalculations. Stockfish 5 might be even better.

i am using Stockfish 14122208 (development version), its a monster engine and much stronger than Komodo 8 or stockfish 5 or Houdini 4. its free and open source.
no. that is SF 141214 you referenced.
the version i use is SF 221214, i regurally give matches between this engine with SF 5 and Houdini 4, SF 221214 is clearly better.
(i dont have komodo8, but if i assume its elo is +30 than houdini4, then SF 221214 is stronger than komodo8 also.)
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SF 221214 supports Syzygy tablebase!
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SF development versions could be found here:
but one thing have to be noticed: the latests are not the strongests! because some fixes can slow down.

Once you learn to use the Fritz GUI, you will laugh at all those who advocate free software. OTOH, once you buy a commercial engine and install the latest stable version of Stockfish, you'll find that it didn't matter whether you bought Komodo or Fritz or Houdini or Rybka.

Once you learn to use the Fritz GUI, you will laugh at all those who advocate free software. OTOH, once you buy a commercial engine and install the latest stable version of Stockfish, you'll find that it didn't matter whether you bought Komodo or Fritz or Houdini or Rybka.
What He Said!

OK, Kilo, this is the sort of thing up with which I will not put! You are showing only the CCRL blitz ratings when Komodo 8 is leading every list at longer time controls, including the 40/40 at CCRL: http://www.computerchess.org.uk/ccrl/4040/
The truth appears to be that Stockfish 5 is slightly stronger at blitz while Komodo is stronger at longer time controls. In either case, they are so close in strength that it makes little practical difference which is chosen for analysis.

Thank you to everyone who has replied so far, for sharing your thoughts, and valuable information!
As an average player looking for help on which engine would be the "best" option to run in Fritz, to analyze their games with, you all, have been very helpful.
Currently the overwhelming majority, seem to be recommending Stockfish.
Please continue the discussion.

If anyone else is interested in the subject of this thread, there is also an interesting article on this very thing, at https://chessbookreviews.wordpress.com/2014/09/11/choosing-a-chess-engine/
That looks like an advertisement for a book, but it isn't.

Komodo is better at most endgames than Stockfish as the latest TCEC showed. I think a combo of Houdini and Komodo is best, but the free Stockfish works fine for most folks.
use Stockfish 5 it's free
https://stockfishchess.org/