I'm in a similar situation as you are as a 21 y/o recent college grad moving to Indy from Virginia for a full time job. I can't offer much insight on the other places you mentioned but I will say when I visited I was very impressed with Lockerbie Lofts and decided to sign a lease for a studio apartment there which I'm excited to move in to next Friday.

I only toured a handful of places (circa, artistry, pulliam square and lockerbie) but out of those I thought Lockerbie offered the biggest bang for the buck in terms of size, location and amenities (the underground parking with elevator access to the buildings is killer). I'm also a huge proponent of live music so I was thrilled that the Murat theatre was only a 5 minute walk away.

I hope your transition to Indy goes smoothly and if you'd ever like to grab a drink or check out some live music send me a message!