For 15 pvp full rec is a MUST in my opinion, unless you plan to only link rec and stat wis which makes no sense.. I was full rec with neutral top, rec/wis pants, rec/wis muffler, rec boots, wise/flash dagger, and made a wise set of boots and muffler, and when i was on my set set i healed about... 800 ish, and with wis set i healed... 1.1k ish? For 1-15 you need about 200 wis and 5k hp, for starters.
I know nothing of 30, but when i poked around in goddess i used full rec, and im sure a partial half and half build would be alright here as well if played correctly. I messed around with half and half, and full rec more than wis. Only did wis when absoloutely required, which it isnt for pve. For pve i typically grind with 4 rec 3 wis or some combo of the sort(for hm), if not in good gears, if im in decent gears i go full rec, but in all honesty no healing is nessecary until the 40s in lann/pando, i solo usually until then.
After about PR/VR level, full rec is a must to me even if well geared. in pve, its better to have an orc around longer to heal, than awesome heals and died 1 hit and runs around like a Brilliant(might as well change it now) ant trying to get mobs off of them if they even survive the first hit.
For 70 pvp i personally prefer full rec, or a mixed build if nessecary, which i have used in pvp and rotco... (shh.. they thought i was wis <.<) i strongly dislike full wis unless absoloutely nessecary, which as i stated above, it is not nessecary or ideal for pve.
For pvp, use full rec. If on a budget and plan to grind, use 4 rec 3 wis for HM, or something close to it.