Since the WW2 threads went so well, I thought that we might as well do at least one modern one. (Mods, if this is too much, feel free to delete this).
I'd say a median-cost, dual engine, semi-low observable (internal weapons bay, but no $2000 an inch paint). Perhaps the Super Tomcat 21 with F22 engines (A planned addition to the 'base' super tomcat 21 design) would fit, if it actually met the specifications. I don't know if supercruise is necessary, but it would be very nice to have. Really any of the 'Super' type capabilities would be great (Supercruise, Supermanouverable, Super Low-Obersevable, High Mach Dash). The super Tomcat 21 with F22 engine would have had Mach 2+ supercruise, a near record-breaking AB dash and very long range. I also don't know whether to focus on ground attack as most modern conflicts are asymmetrical, or to focus on AtA to make sure modern conflicts stay only between a weaker and stronger power...