reviving this thread due to a discussion in the Hyou-Ka thread of all places.
Right, so about which show the studio had worked on that looks the best, I actually answered this a while ago (like
last year) and my position remains the same : HanaIro > True Tears > Canaan > Angel Beats in terms of visuals.
HanaIro was probably the best looking thing they got out, followed by TT. Canaan I liked, though it clearly suffered from either lack of time or budget since from what I remember it wasn't that great looking, but Angel Beats was certainly not that great looking and considering the sort of budget it had, it almost certainly would be embarrassing to watch now.