PW is probably the most disappointing game in the series for me because it just skips over such an interesting point in the series' timeline. Almost no mention of the Les Enfants Terribles project, nothing between Big Boss and Zero, no appearance from Ocelot or Eva or any recurring characters, except the awful Huey who I really wanted to forget. Big Boss being best buds with Otacon's Dad, who looks and sounds and acts exactly like Otacon in every way is Metal Gear's Darth-Vader-made-C-3PO point.
I'm really hoping Zero will actually make an appearance in MGSV.
Yes, yes, yes. Agree with you on all points, especially the part about Huey. After MGS4's deeply flawed (though still enjoyable) plot and the total letdown that was PW, I lost a fair amount of enthusiasm for the series going forward.
And yet I can't help but be incredibly intrigued once again after watching the MGSV trailers. It would be a great thing if Kojima were to return to form.