Without knowing anything about the particular units, it's hard to say about the resale potential. The Juliet and The Vogue have good reputations, so you're safe on that front. Break it down for us: square footage? view? amenities? price? which one offers more bang for its buck?
The only thing - and I might get some grief for saying this - but I would feel slightly safer on the streets at night outside the Vogue. There's more people around, better lighting. There's still the odd dodgy junky milling around Johnson and Blanshard once in a while. That stretch of Johnson between Douglas and Blanshard is dark and a little empty. Even my 6 foot self would feel a little unsafe along that stretch late at night. It's just a little something, but it's something to keep in mind. It might not bother some.
edit: duh. I read Monaco but I absorbed Vogue. Monaco is above MEC right? So same location as Vogue.
Vogue is above the MEC, Monaco is across the street on the corner of Gov't and Johnson.
I walked down Fort to the Mosaic (across the street from the place I'm looking at), by myself I may add, at around 10 pm last night and I didn't really feel like I needed to fear for my life or anything. No more than walking around downtown Ottawa at night.
I might as well show you the listings, seeing as they're public knowledge anyway.