ARGUMENT:If you are producing ships that do not embolden your main fleet you will instantly lose your entire main battle fleet against a skilled opponent. Which is better.. taking an asteroid out and losing your fleet, or not losing your fleet.
^ pretty much....
i'm the #1 siege hater...
i will not say i 'never' build them, but they are basically useless IMO 85% of the time. i can sit here and theorize crazy situations that i would like to have a chunk of them (the best of which is i have a fleet advantage i want to capitalize on to keep the pressure going), but unless i'm 250+ total supply or w/e, i don't want any sieges in my fleet. they are useful past this point to allow your main force to move on and continue expansion (i usually play multis).
the marginal advantage of bombing someones base just slightly faster for 525 cred/12 supply (i play visari) is way too much risk when compared to keeping fleet parody, or better yet, fleet advantage.
i played against an AI while i was having some probs connecting yesterday due to patch issues, had 4 sieges in the ai's homeworld... and it still took them a good 5 mins + to nuke its planet. thats 48 supply to still take forever to clear a planet. only reason i bought them at all is i had the compus planets cleared and just needed to bomb it out of the game and was trying to speed that process up.
i'd much rather have a siege cap that has some use in ship to ship combat any day of the week. i think by the time 4+ sieges are purchased, its pretty close to the credit/supply cost of a siege cap when compared to the double duty that a siege cap does...
i'm not 100% on how much better sieges are at clearing structures, but in all honesty, normal fleets do this just fine on their own.