hands down... sh3 was king right out of the box. Ubi showed us for weeks videos of game play and trailers etc. and when we brought the game home and installed it... what we saw was what we got.
with SH5, well... we saw crewman running to stations, engaging one another in conversation... we saw a living u-boat and her gallant crew going about their duties.
what we got out of the box there was most decidedly NOT what were were lead to believe was within the box.
SH3 still rules, and it gets its share of gameplay on my PC still these days closing in on a decade after release.