I'm transferring my post from the YF-23/F-23 thread to avoid taking it further off topic. This summarizes what I think is the design lineage of the F-22 configuration that we see today, and also noted by several other members here.
Based on articles and diagrams from Lockheed Martin's Code One, the current F-22 can trace a significant part of its fuselage and wing configuration to General Dynamics' ATF proposal for Dem/Val RFP. That proposal was optimized for supercruise and maneuver, but struggled with all-aspect stealth due to the single large vertical tail and rather messy wing trailing edge.
After the RFP down-select, in the summer of 1987, the baseline 595-6 design proposal with trapezoidal wings and four tails was abandoned, and a variety of configurations was explored, with wings ranging from trapezoidal to diamond-like delta and empennage ranging from two tails to four tails. Out of the various proposals, it appears that 607-0 with diamond wings similar to General Dynamics' proposal and four tails evolved into the 614, which became the chosen configuration onwards. This configuration appeared to have issues with wave drag that wasn't solved until the thrust reverse requirements were deleted, which presumably allowed the rear fuselage to be slimmed down. Even so, the YF-22's, design 1131/631 (thrust reverser were deleted in 1132), supercruise performance was generally noted to be inferior to the YF-23's. As the design evolved into the 638 EMD proposal configuration, the rear fuselage appears to be further slimmed down, while the vertical stabilizers were decreased in size. The further decrease in cross-section likely improved wave drag characteristics, although I suspect that it may also have reduced the aircraft's fuel load.
The 645 design of the actual EMD/production aircraft reported had essentially the same OML, but based on a schematic I saw of the EMD proposal, some panel edges were redesigned presumably to improve observables; for instance, where the fuselage transitions to the nozzle structure, the EMD/production aircraft has fewer and larger serrations than the proposal. I believe the weapon bay door serrations were enlarged as well.
F-22 design evolution from Code One.
A chart of the design evolution from overscan.
To summarize, I think the lineage of the F-22 (tailed diamond-like delta) can be summarized as follows, starting from the summer 1987 "fire drill":
607-0 (GD-like proposal with 4 tails) -> 614 (chosen configuration in summer 1987) -> 1132/632 (YF-22 design) -> 638 (EMD F-22 proposal) -> 645 (EMD/production F-22).