1.
comfy interior/ride ( baby on the way) ->
You can't go wrong with the Altis here. Among your choices, I believe this has the most comfortable ride. Last on the list would be the civic.
2.
spacious/trunk space (me,my wife & 2 kids plus yaya sometimes.. and bigger trunk space for my 80''L X 60"W suitcase which i always use when i go/back from abroad plus extra plastic bags from duty free as pasalubong

->
Again, the Altis wins here. I dunno how big the trunk space of the Mazda, the Civic however is pretty big enough ... the altis is just bigger.
3.
Audio sytem ( my wife & 5 y/o kid loves music & both uses ipod)
only the civic has an USB ipod connection.. ->
Civic. `nuff said.
4.
Safety features/handling/ parking ( when im abroad,my wife is the family driver>> school-grocery-mall normally. ->
Civic. The Altis' handling however is somewhat " wallowy " the Civic drives better ( as per to experience ) . The Mazda 3, i dunno.
5.
fuel consumption/city drive (sometimes we travel to south to visit relatives.. ->
Civic FC -> 8km/l city driving ;; 11km/l mixed driving ( tested ) -- Altis FC -> 9-10km/l FC ;; 11 km/l mixed ( that's what i`ve read ) -- Mazda 3 FC -> Lucky you if you you reach 2 digits in your FC may it be highway or city.
6.
Good/reliable casa service,maintenance/pms cost and availability of aftermarket/modification parts someday!
->
Good Casa service ? It's either the altis or the 3. ;; pms cost ? toyota. ;; availability of aftermarket parts ? -> Civic.
Budget: 800-950K
My say: Get the Civic.
-> Altis ? NOT ... for now. Sludge issue, sticking of accelerator pedal. Not worth it.
-> 3 ? It drinks like a 2.0. And, facelift will come out sooooooonn.
Thanks guys!.. more power!
No problem. 