the new civic is either 1.8 or 2.0. The altis is 1.6 or 1.8. The new civic to me is waay better than the altis since i think the altis is a 3++ year old model.
i have 1.8 altis at home, 3 yrs old and so far it's a so-so car. The FC is good enuff, but the suspension is quite stiff for a normal sedan. It has ABS, VSC, Electronic Brake Distribution, Brake assist, GOA and airbags. Performance wise... well, i'd prefer my AE101. Downside: it looks kinda 'uncle' to me.
I never test drive the new Civic before but at least i sat in one. So far, the trims are only good for the 2.0. The 1.8 is looks degraded, but okay. U can view the specs of the new civic in another thread here. Downside: Pricey
Mitsubishi : Lancer. I dont know much :P