Neither. There are nine candles total on a Chanukah menora, one of which, the Shamus (servant) is distinguished by being positioned either a little higher, or lower, and either in the center or on one (usually the left) end. It is used to light the other candles. Candles are lit left to right, but the Menorah is filled right-to-left by day. If "S" is the Shamus, and "C" is an ordinary candle, and "_" is the space where a candle sits, you get the following patterns (on my Menorah)

1st day
S_______C
3rd day
S_____CCC
7th day
S_CCCCCCC

on my parents Menorah
1st day
____S___C
3rd Day
____S_CCC
7th day
_CCCSCCCC