It depends on who's looking at you. If it's someone who doesn't know anything they might look at your arms and quads. Someone who knows what to look for will look at back, traps, shoulders, hamstrings.
To give you an example, there was a guy who used to train at the same gym that really had a nice look to him V-taper, developed quads, good arms and chest. Unfortunately, his back development was hugely lacking, traps were unimpressive, waist looked unstable. This random guy who is working around me comments between sets that the other guy has a "strong build." Right then, I knew that the two of us were looking and seeing things completely differently. Where he saw strength, I saw all-show-no-go. To illustrate, the same person could not row at any more than a 30 degree angle with 135 without it bothing his back. He couldn't break over 205 from the floor in the deadlift without a mighty struggle. He couldn't squat over 135 all the way down. Incidentally, I know all of this because I either witnessed it beforehand or later corrected it in his training. Basically his core and posterior chain were dangerously weak and this is the foundation of all power because it ties the body together.
Take from that what you will but if you want to look and be strong then you'd be best served by squatting and pulling from the floor.
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