suiteng, the areas that u've listed out span quite a vast geographical area (from sg besi to dsara to titiwangsa, etc). u sure u dun mind staying in any of these areas? how abt proximity to work, family, etc?

anyway, from the above list, i would say titiwangsa sentral beats the others hands down in terms of investment. however, all units have been sold out so u can strike that out from ur list. ytl has also pulled back the launching of midfields tower b and refunded all deposits to the prospective buyers with the reason "permit still not approved"... considering that tower b was still only 50% sold for abt a yr after it was launched, i am not surprised. tower a is sold out so i guess u dun hafta consider midfields anymore as well.

pelangi dsara that u stated would be pelangi 1 or 2? pelangi 1 is quite...ehem 

tropics...well, the remaining units have a 'less than desirable facing' (indian graveyard next to kdu) and at abt RM300k a pop now for 500+ sqf, hmmm...

ritze perdana 2 consists of all studios so it might be abit hard if u wanna sell it next time unless u got urself a choice unit with nice fittings and fixtures.

if 1petaling is an option, why not consider zest? better location for investment imho. 1petaling is leasehold compared to zest's freehold. but zest is currently selling its block A now, which is pricier compared to blocks C and B launched few mths back.

If I could pick 2, my vote goes for :

1. Titiwangsa Sentral ( I assume u have a way of getting a unit there, hence y u put in ur list ) for obvious reasons.

2. Tropics - Casa Suites prices n rental looks to be holding fairly OK and doubt the Glomac Residence accross the road will be anything less than RM600psf.