SURE Regice has a lot more base Sp. Defense than Blissey, but do you really know why Blissey is the best thing in the world?
Lets compare them stat wise:
- HP: 80/255 *
- DEF: 100/10
- SP. DEF: 200/135
Okay, so Regice has MUCH more Defense than Blissey (which is her only weakness), and Regice has higher Sp. Defense.
*BUT, take a look at the HP. 255 vs 80.
THIS is why Blissey is so awesome. At Lv 100, Blissey can have up to 714 HP at the maximum possibility.
With that much HP, Defense and Sp. Defense almost doesn't matter anymore! She can take tons of hits!
Regice is defensively built, but not meant to last long. lt will eventually be worked out and get KO'ed.
Who but Blissey can take tons of hits (except for Fighting type moves D:), AND Softboil back half her HP?
Blissey is a wonderful wall, and getting hit by Sp. Attacks are tickles still!
She can take non super effective Physical attacks well too! Blissey is just great.
lf you think that Regice is better at taking Special hits, as well as dealing damage, than go right ahead and train Regice.
- Regice is more like a Tank, that may also get KO'ed by a Close Combat or something.
- Blissey is more of a Staller or Wall that will be such an ass to KO. She can't really do much damage (maybe with Counter she can) but that is pretty risky.
IN CONCLUSION TO MY BLISSEY RANT <3:
Blissey can take Special hits better than Regice, because she has way more HP to get KO'ed than from Regice, which simply makes special hits do a little less on it.
With defensive walls, always consider HP into the equation too! ~