2Super
Bell X-1 1.21 F-104 2.2 Delta F102 SUBsonic. If Power is not an issue, straight works just fine. When the wings sweep, they present less frontal to the airstream, less parasitic drag for equal induced and lift. Some form of hybrid airfoil is preferred as in F-15 or F-22 ("double Delta"). The wing is a very large Library of text. What's the Mission? Low Speed Handling? Constant chord, straight. Except for Intruders F-104.Wings milled from solid Billets of Aluminum and bolted on in Anhedral, the Starfighter could kill you quickly on short final below 200 knots. Engineered Instability? B-2. Efficient hauling? 74, 75, AB, etc. This could get to be a long discussion.
Airfoil