195/55 R15 u can get nice tires with better comfort at cheaper price too...
205/50 R16 is wider in also make ur stance wider also...
195/55 R15
Pros :
More Comfort
Cheaper Tires (below RM300 u can get good performance tire)
better FC (compare to 205/45 R16 or 205/50 R15, of course might be a lil more compare to 185/55 R16)
better acceleration (compare to 205/45 R16 or 205/50 R15, of course might be a lil slower if u compare to 185/55 R16)

Cons :
Handling poorer (still depends what tire you are using)
the gap of the fender with ur wheels might look bigger (but in the fact it just maintaining)
205/45 R16 or 205/50 R16
Pros :
Better handling (still depends what tire you are using)
the gap looks smaller between ur wheels and the fender... (but in the fact it just maintaining)

Cons :
Expensive (above RM300 only can get good performance tires)
lack of comfort (as we all knows that Honda car's suspension is on the hard side)
increase of FC (compare to 195/55 R15 or ur original size)
slower acceleration also...

there is a few key points that will affect your handling and comfort too... it depends on the tire's sidewall properties...
regards on $$$ it depends on individual,
195/55 R15 u can get Hankook V12 Evo ~RM200, PS3 ~RM260, RE001 ~RM260, Federal 595 Evo ~RM260...
205/50 R16 u only get PS3 ~RM450, RE001 ~RM400, Federal 595 Evo ~RM340, Hankook V12 Evo (205/45 R16) ~RM300...

so it depend on individual... what you want and willing to spend...