If I had both and was headlining one of them I'd usually go with Suez - it's guaranteed and you're not going need access to Egypt immediately anyway.
You won't need the MilOps from AI War once you coup Iran, and the main purpose is to expel the US from the Middle East, so you don't care about only reducing the UK to 3/0 and missing out on 1 op loss on the event.
If you headline the War and it doesn't work, and then coup Iran, almost all US players will put influence in Jordan and.or Lebanon as their first play, which will removes the reason to play Suez, plus when it comes back the US player may get it, when he can replace almost all the influence it removes, or space it.
You won't need the MilOps from AI War once you coup Iran, and the main purpose is to expel the US from the Middle East, so you don't care about only reducing the UK to 3/0 and missing out on 1 op loss on the event.
If you headline the War and it doesn't work, and then coup Iran, almost all US players will put influence in Jordan and.or Lebanon as their first play, which will removes the reason to play Suez, plus when it comes back the US player may get it, when he can replace almost all the influence it removes, or space it.