white syr #6, white keiko summer, and then probably the white koral i just got from a guy i train with (sleeves were too short for him).
why? the syr just fits the best, and it's light. i used to like a heavier gi, but i'm into the light weights more and more. my keiko is both light weight and incredibly soft for a pearl-type weave. and it wraps up nice and fitted, without any excess bulk in the back or under the arms. do wish the pants were a little lighter. they're VERY soft and comfortable, and the fit is awesome, but lighter pants on a summer gi would be nice. the koral comp is the gi i have the least experience with -- rolled in it for the first time today. it fits decently (would like it a wee more trim thru the torso) and is super soft and comfortable. i like the really short skirt, and and the pants are this lightweight but tough canvas. i dig.
other gis i have: white lucky, white manto, and a white fuji victory. i love my lucky, but i wouldn't bring it to a desert island because it's a goldweave. more and more i'm just always reaching for my light gis first. i used to love my manto, but as i've tried more brands i'm less and less a fan. it's a solid gi construction wise, but it's just bulky thru the torso and back. especially compared to my syr. plus, the pants on that thing were GInormous. i tossed them out. my white fuji was nice when i first got it, but it's shrunk so damn much it's kind of ridiculous. it started out an A2, and now it's between an A0 and an A1. i typically wear an A1. i use it as a backup when i haven't had time for laundry. it's a tight fit, and the sleeves wouldn't be comp legal (and i have short arms!).
other gis i used to have (but sold or traded): blue keiko goldweave. very soft, very comfy, and a great fit. but i decided to stick to white gis til i get my blue belt (personal preference/motivation), and 1 goldweave in the rotation is enough i think. i traded it for the koral mentioned above. Live Love Fight: impulse buy, and i regretted it as soon as i got it. cut very similar to the manto -- just boxy and bleh. the embroidery on the pant leg was messed up (half of a couple of the letters were missing -- like they just never got sewed in). overall, the quality and feel just didn't warrant the price tag -- which is saying something cuz i dropped a coin on the lucky and never regretted it. anyway, i sold it on ebay. white fushida icon judogi: incredible gi, but it's 100% judo. effing bulletproof doubleweave with a collar that's murder and a jacket that feels like armor. excellent for judo competitions, but not the most comfortable to roll in. sold it on ebay. white mizuno kano: judogi. the softest, most comfortable doubleweave i've ever met. trim cut for a judogi, but it's still a judogi. ie, big sleeves and a skirt. i keep it on hand in case i ever go back to judo, and sometimes use it for bjj when all other gis are dirty. it's very comfortable to roll in.
that about sums it up!