If the current switch is malfunctioning or not properly delivering the signal, you would be noticing HDMI dropouts in the form of audible and/or visible glitches on-screen. Is your PQ being degraded in some other way aside from this? OK, "a little bit of loss." That just seems unlikely and more related to psychology, but I'm not in your room (wouldn't that be creepy?) seeing what you are. I just think it might be a waste if you upgrade a perfectly working switch.
Seems like I have a little more grainy then normal. It is an older switch but it is 3d and 1080p compatible. I'm fine with ordering a new switch just wondering what switch is the best. I know the tv supports hdmi 1.4.