Soul Blade was Tekken 2 with weapons and even higher production values (which back then, was quite a big deal). Unlike other games in this series though, Soul Blade isn't much fun to go back to today.

Soul Calibur was the most revolutionary jump in the series in terms of gameplay. When it launched on the Dreamcast, it received an incredible boost in graphics as well.

Soul Calibur II tightened up the fighting system from SCI and added a few new tricks as well as a simplified parry system, making it easier for newcomers. Character balance was also the best here (guest characters aside). The extra modes weren't quite as memorable as SCI's, but offered better prizes (weapons rather than artwork).

With Soul Calibur III, it seemed as if Namco was trying to change things up a bit for those that complained that SCII was too much like SCI... however they went about it all the wrong way. The fight system felt more in line with SCI and thus, felt looser and more imbalanced than SCII. To make matters worse, many characters had the commands of their moves changed or even removed altogether. On the plus side though, SCIII has hands-down the best extras and additional modes in the entire series, not to mention the character creator. It's just a shame that the fighting itself wasn't as fun as it was before.

Soul Calibur IV still to this day amazes me with its graphics and the custom characters finally don't look out of place with the main cast. The fight system is more in line with SCII, but for whatever reason, Namco took away even more moves for many characters, leading some characters to actually have a smaller moveset than they had in SCI. Balancing was better than III, but still not as good as SCII. The online, while better than Tekken DR, was still a joke (lag-fest). The most disappointing thing however, is the exras and modes... there aren't any. How they could have gone from SCIII's dozens of modes to a mere 2 is bewildering. The Story Mode doesn't have any cutscenes aside from an ending -- endings so under-par that they're on the same level of Tekken Tag. The Tower of Lost Souls is repetitive and unforgiving with little incentive to play through. I hate to say it, but I think Tekken 6 is going to mop the floor with this incomplete package.

SC2

The Gamecube version of SC2

SC-II

Mainly because i felt Ivy looks much better and sexier there

quote Kokoro

Wow, so you like that one the best just because you think Ivy looks the sexiest in that one?

hmm yes

and Taki also looks better and her suits..hmm really pronounce her boobs