Hi,
Of the computers I have owned, quite a few have been laptops.
Small, but not too small seems to be best. The largest did not
get much use. The smallest was nice if you were moving from
place to place (home, work, hotel rooms, Mom's house, etc.) but
did not get much more than e-mail done with it, too small a screen
for anything else. Two have TV out features that extend the
Windows desktop to the TV. I have found that rather useful at
times. The older has S-Video, the newer HDMI. I am using the
older one as a DVD player now. My brother-in-law used the same
HDMI computer for internet video at one time.
HTH,
Steve N.