I'm currently in the single best job in the USAF where I'm current/qualified in the Eagle and the Viper. Complete disclosure, I was a Strike Eagle baby growing up.
I agree completely with a lot of this sentiment. There are some sorties, both training and combat, that I'll never forget because of the leathality present with a formation of F-15Es with sound crew coord. However, having a bad day with a bad WSO/poor crew coord is miserable. The crew construct really is a force multiplier; for the good and the bad. A good crew is way better than the equivalent effort of two people. Having a bad crew day makes me feel like I need more than double the effort just to make ends meet.
I wish I could articulate how obvious it is to immediately distinguish the difference between the designed mission set of these two aircraft on your first Viper sortie. The Viper with a GE motor on a cold day truly is a rocket ship. I've taken a single-bag jet on a sub-freezing morning with a GE-100 to FL300 on an unrestricted climb. It's a ton of fun!
I've never taken the Viper to combat. Having said that, I'm not sure I would ever want to. The jet is a nightmare from a human factors or avionics perspective. The RADAR is a joke. The ability to utilize sensors is still a slave to a 1970s construct that has been completely debunked and remains a complete liability to the airframe. Many of the current DT efforts are an attempt to bring the jet to a level that is, in many ways, equivalent with F-15E Suite 5, let alone Suite 9. Except for Auto ICAS. I wish the F-15C/D/E could get that, if only for risk reduction. In many ways, the Viper jet is a true testament to the dudes flying the jet. There's a ton of compensation required to employ it effectively, and the bros have done an amazing job over the last 25 years making that jet as lethal as it has been.
Having said that, there's a reason the USAF is spending $10B to maintain the F-15 fleet through 2050 and replacing the Viper. Pick the jet you would take to war. That's a pretty easy choice for the current COCOMs. Good luck on your decision.