Venus really has the perfect tennis body. Tall and lanky but incredibly fast.
But she's an exception, all the 6' girls are slow. It's better to be ~5'10" in the WTA. Enough height that you can still serve well but short enough that your movement isn't compromised. Wozniacki is probably around the ideal height. Serena too but she's too busty which I think contributes to her injuries and struggle with fitness.
In past, before racquet technology revolution, 6'+ tall girls are just hopeless for real-deal tennis achievements because lack of speed. But in last 10-15 years everything is changed and girls are in position to maximize theirs power. BTW in XXI century (since 2001) there still no any 5'10"-5'11" tall GS champion (with several from 5'8"-5'9" or 6'1"-6'2" group) which is maybe coincidence, but also maybe players from 176cm-182cm group which You call perfect height
are from tennis no man's land
- too tall to use advances of smaller players, and not enough tall to have all benefits which use "giants"
There is really many 5'10"-5'11" girls into TOP10 or TOP100 all the time all this years, but when it come to reach GS finals only Dementieva, Pierce, Jankovic and Wozniacki achieve that in XXI century (and nobody won single title).
Why does a european start a thread like this using the american system of measuring height?do you not use the metric system anymore in Serbia?
I will answer to You, despite I don't see any reason for this yours question (btw metric system is not European but worlds official system, and feet is used in many European countries, like UK for example). Simple, Its looks way better for thread title to use (round) 6'
border (180cm is still not enough to call someone giant